FPUS55 KRIW 190556 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 1152 PM MDT Sun May 18 2025 WYZ020-191000- Natrona County Lower Elevations- Including the city of Casper 1152 PM MDT Sun May 18 2025 .TONIGHT...A slight chance of thunderstorms late this evening. Rain showers. Breezy with lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 80 percent. .MONDAY...Rain showers. Breezy, cooler with highs in the mid 40s. Northwest winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Breezy with lows in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph, becoming west 10 to 15 mph after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers likely with a slight chance of thunderstorms in the afternoon. Breezy with highs around 60. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 30s. North winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny. A chance of rain showers in the morning, then rain showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 60 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the lower 40s. Chance of rain 30 percent. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 40 percent. $$ WYZ017-191000- Wind River Basin- Including the cities of Riverton and Shoshoni 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain showers. Breezy with lows in the upper 30s. North winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 80 percent. .MONDAY...Mostly cloudy. Rain showers likely, mainly in the morning. Breezy with highs around 50. North winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming west after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. A chance of showers in the evening. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A slight chance of. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the mid 40s. Chance of rain 30 percent. .SUNDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent. $$ WYZ018-191000- Lander Foothills- Including the city of Lander 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with showers likely. Lows in the mid 30s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .MONDAY...Mostly cloudy. Showers likely, mainly in the morning. Highs around 50. North winds around 10 mph. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Lows in the mid 30s. Northwest winds around 10 mph, becoming southwest after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 10 to 15 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .WEDNESDAY...Mostly sunny. A slight chance of. Highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Lows in the lower 40s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the mid 40s. Chance of rain 30 percent. .SUNDAY...Partly cloudy. A chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ WYZ028-191000- Rock Springs and Green River- Including the cities of Rock Springs and Green River 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy and breezy. Lows in the upper 20s. West winds 15 to 25 mph with gusts up to 40 mph. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs around 50. West winds 15 to 25 mph with gusts up to 45 mph. .MONDAY NIGHT...Mostly clear and breezy. Lows around 30. West winds 15 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 60. West winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 30s. West winds 15 to 20 mph with gusts up to 35 mph in the evening. .WEDNESDAY...Sunny, breezy with highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. .SUNDAY...Mostly sunny. Highs around 70. $$ WYZ013-191000- Jackson Hole- Including the city of Jackson 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with rain and snow showers likely. Snow accumulation up to 1 inch. Lows in the upper 20s. West winds around 10 mph, becoming northwest after midnight. Chance of precipitation 60 percent. .MONDAY...Partly cloudy. A chance of snow showers in the morning. Highs in the mid 40s. Northwest winds around 10 mph, becoming west with gusts up to 25 mph in the afternoon. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy. A chance of snow showers after midnight. Lows in the mid 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming south after midnight. Chance of snow 30 percent. .TUESDAY...Partly cloudy. A chance of rain and snow showers in the morning, then rain showers with a chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the lower 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 80 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of precipitation 30 percent. .WEDNESDAY...Mostly sunny. Highs in the mid 50s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 30. .THURSDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. A chance of rain showers in the evening. Lows in the lower 30s. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A slight chance of. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. .SATURDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of rain showers in the evening. Lows in the mid 30s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of rain showers in the morning, then a chance of rain showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. $$ WYZ003-191000- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with a chance of rain showers. A chance of snow showers after midnight. Little or no snow accumulation. Breezy with lows in the mid 30s. North winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 50 percent. .MONDAY...A chance of snow showers in the morning. Mostly cloudy with a chance of rain showers. Breezy with highs around 50. North winds 15 to 25 mph with gusts up to 40 mph. Chance of precipitation 30 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northwest winds 10 to 15 mph, becoming west after midnight. Gusts up to 30 mph. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers with a chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy with a chance of rain showers. A slight chance of snow showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows around 40. .THURSDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the mid 40s. Chance of rain 20 percent. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the lower 40s. Chance of rain 30 percent. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. $$ WYZ004-191000- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with showers likely. Windy with lows in the upper 30s. Northwest winds 25 to 35 mph with gusts up to 50 mph. Chance of rain 60 percent. .MONDAY...Mostly cloudy with showers likely. Windy with highs in the lower 50s. Northwest winds 20 to 30 mph with gusts up to 50 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Breezy with lows in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the upper 30s. Northwest winds 10 to 15 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Partly cloudy in the morning, then clearing. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. .THURSDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .FRIDAY...Mostly sunny. A chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the mid 40s. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 40 percent. $$ WYZ006-191000- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 1152 PM MDT Sun May 18 2025 .TONIGHT...Showers likely. Windy with lows in the upper 30s. Northwest winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 60 percent. .MONDAY...Cloudy with showers likely. Windy with highs around 50. Northwest winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming west after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers likely with a slight chance of thunderstorms in the afternoon. Highs around 60. Southwest winds around 10 mph, becoming northwest with gusts up to 20 mph in the afternoon. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the upper 30s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the mid 40s. Chance of rain 30 percent. .FRIDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 40 percent chance of showers. Lows in the mid 40s. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ WYZ005-191000- Southwest Bighorn Basin- Including the city of Thermopolis 1152 PM MDT Sun May 18 2025 .TONIGHT...Showers likely. Breezy with lows in the upper 30s. Northwest winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 70 percent. .MONDAY...Mostly cloudy. Showers likely, mainly in the morning. Breezy with highs around 50. Northwest winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 60 percent. .MONDAY NIGHT...Partly cloudy with a slight chance of rain showers in the evening, then mostly clear after midnight. Breezy with lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph in the evening. Chance of rain 20 percent. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Southwest winds around 10 mph, becoming north in the afternoon. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear with a slight chance of rain showers after midnight. Lows in the mid 30s. North winds around 10 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy with a chance of showers in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the mid 40s. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ WYZ023-191000- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain and snow showers likely. Storm total snow accumulation around an inch. Lows in the upper 20s. West winds around 10 mph late this evening. Chance of precipitation 60 percent. .MONDAY...Mostly cloudy with a chance of snow showers in the morning, then partly cloudy in the afternoon. Highs in the mid 40s. Northwest winds around 10 mph. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then mostly clear with a chance of snow showers after midnight. Lows in the upper 20s. West winds around 10 mph with gusts up to 20 mph in the evening. Chance of snow 30 percent. .TUESDAY...Mostly cloudy with a chance of rain and snow showers in the morning, then partly cloudy with rain showers likely with a chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the lower 50s. Southwest winds 10 to 15 mph. Chance of precipitation 70 percent. .TUESDAY NIGHT...Mostly clear. A slight chance of rain showers in the evening. Lows in the upper 20s. Southwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs around 60. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. A slight chance of rain showers in the evening. Lows in the mid 30s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A 20 percent chance of rain showers. Lows in the upper 30s. .SUNDAY...Mostly sunny with a 20 percent chance of rain showers. Highs in the mid 60s. $$ WYZ025-191000- Upper Green River Basin Foothills- Including the city of Pinedale 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy with a chance of rain and snow showers. Lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 30 percent. .MONDAY...Partly cloudy. A chance of snow showers in the morning. Breezy with highs in the upper 40s. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of snow 30 percent. .MONDAY NIGHT...Mostly clear and breezy. Lows in the mid 20s. Northwest winds 20 to 25 mph with gusts up to 35 mph, becoming north around 10 mph after midnight. .TUESDAY...Partly cloudy with a chance of snow showers. Rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs around 50. Northwest winds around 10 mph with gusts up to 20 mph, becoming west 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of precipitation 60 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 20s. West winds 10 to 15 mph with gusts up to 30 mph in the evening. .WEDNESDAY...Mostly sunny. Highs in the mid 50s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. .THURSDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. .FRIDAY...Mostly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. .SATURDAY...Partly cloudy. A chance of rain showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A 20 percent chance of rain showers. Lows in the lower 30s. .SUNDAY...Mostly sunny with a 20 percent chance of rain showers. Highs in the lower 60s. $$ WYZ026-191000- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy. A chance of rain and snow showers after midnight. Breezy with lows in the upper 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 30 percent. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers in the morning. A chance of rain showers. Breezy with highs around 50. Northwest winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of precipitation 30 percent. .MONDAY NIGHT...Mostly clear and breezy. Lows in the mid 20s. Northwest winds 20 to 25 mph with gusts up to 35 mph, becoming west around 10 mph with gusts up to 20 mph after midnight. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. West winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 40 mph in the afternoon. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows around 30. West winds 15 to 20 mph with gusts up to 35 mph in the evening. .WEDNESDAY...Sunny, breezy with highs in the lower 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 30s. .THURSDAY...Mostly sunny. A slight chance of. Highs around 70. .THURSDAY NIGHT...Mostly clear and breezy. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. A slight chance of. Highs in the upper 60s. $$ WYZ010-191000- Northeast Johnson County- Including the city of Buffalo 1152 PM MDT Sun May 18 2025 .TONIGHT...Showers with a slight chance of thunderstorms late this evening, then showers after midnight. Windy with lows in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph, increasing to 25 to 35 mph with gusts up to 50 mph after midnight. Chance of rain 80 percent. .MONDAY...Showers, windy and much cooler with highs in the mid 40s. Northwest winds 20 to 30 mph with gusts up to 50 mph. Chance of rain 90 percent. .MONDAY NIGHT...Mostly cloudy. Showers likely in the evening. Breezy with lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph, diminishing to around 10 mph after midnight. Chance of rain 60 percent. .TUESDAY...Partly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the upper 30s. Northwest winds 10 to 15 mph in the evening. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 60. Chance of rain 60 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 40. .THURSDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. .THURSDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .FRIDAY...Partly cloudy with a 30 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the mid 40s. .SATURDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. $$ WYZ011-191000- Southeast Johnson County- Including the city of Kaycee 1152 PM MDT Sun May 18 2025 .TONIGHT...Showers with a slight chance of thunderstorms late this evening, then showers after midnight. Breezy with lows in the upper 30s. North winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 45 mph after midnight. Chance of rain 80 percent. .MONDAY...Rain showers. Breezy and much cooler with highs in the mid 40s. North winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 90 percent. .MONDAY NIGHT...Cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Breezy with lows in the mid 30s. North winds 15 to 20 mph with gusts up to 35 mph, becoming west around 10 mph after midnight. Chance of rain 30 percent. .TUESDAY...Partly cloudy. Rain showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 50s. West winds around 10 mph, becoming north in the afternoon. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 30s. North winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny with a chance of rain showers in the morning, then partly cloudy with rain showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 60 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .FRIDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the mid 40s. Chance of rain 20 percent. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. .SATURDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 40 percent. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. $$ WYZ027-191000- South Lincoln County- Including the cities of Kemmerer and Cokeville 1152 PM MDT Sun May 18 2025 .TONIGHT...Partly cloudy late this evening, then becoming mostly cloudy. Breezy with lows in the mid 20s. West winds 15 to 20 mph with gusts up to 35 mph. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs in the upper 40s. Northwest winds 15 to 25 mph with gusts up to 40 mph. .MONDAY NIGHT...Mostly clear and breezy. Lows in the upper 20s. West winds 20 to 25 mph with gusts up to 35 mph, becoming southwest around 10 mph with gusts up to 20 mph after midnight. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. West winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly clear and breezy. Lows around 30. West winds 15 to 20 mph with gusts up to 30 mph in the evening. .WEDNESDAY...Sunny. Highs around 60. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. Highs around 70. $$ WYZ016-191000- Upper Wind River Basin- Including the city of Dubois 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy with a chance of rain and snow showers. Lows in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 40 percent. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of rain and snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs around 50. Northwest winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of precipitation 30 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the lower 30s. West winds 20 to 25 mph with gusts up to 40 mph, becoming northwest 10 to 15 mph with gusts up to 30 mph after midnight. .TUESDAY...Mostly sunny. Rain showers, snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 50s. West winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of precipitation 60 percent. .TUESDAY NIGHT...Mostly clear. A chance of rain and snow showers in the evening. Breezy with lows around 30. West winds 20 to 25 mph with gusts up to 40 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of precipitation 30 percent. .WEDNESDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain showers in the afternoon. Breezy with highs in the upper 50s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. A chance of rain showers in the evening. Lows around 40. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A slight chance of rain showers in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. A slight chance of. Lows around 40. .SATURDAY...Partly cloudy. A chance of rain showers in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy. A chance of rain showers, mainly in the evening. Lows around 40. Chance of rain 30 percent. .SUNDAY...Mostly sunny with a slight chance of rain showers in the morning, then partly cloudy with a chance of rain showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. $$ WYZ001-191000- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with a 30 percent chance of snow showers. Lows in the mid 20s. Northwest winds around 10 mph with gusts up to 20 mph. .MONDAY...Partly cloudy. Highs in the lower 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph. .MONDAY NIGHT...Partly cloudy. A chance of snow showers after midnight. Lows in the mid 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 30 percent. .TUESDAY...Mostly cloudy. A chance of snow showers in the morning, then snow showers, a chance of thunderstorms and rain showers in the afternoon. Little or no snow accumulation. Highs in the mid 40s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 80 percent. .TUESDAY NIGHT...Mostly cloudy with snow showers, rain showers likely with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of snow showers after midnight. Light snow accumulation possible. Lows in the mid 20s. West winds around 10 mph with gusts up to 25 mph in the evening. Chance of precipitation 60 percent. .WEDNESDAY...Partly cloudy with a chance of snow showers. A slight chance of rain showers in the afternoon. Highs in the upper 40s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s. .THURSDAY...Partly cloudy. A slight chance of rain and snow showers in the morning, then a chance of rain showers and thunderstorms in the afternoon. Little or no snow accumulation. Highs in the mid 50s. Chance of precipitation 50 percent. .THURSDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Lows in the lower 30s. Chance of rain 40 percent. .FRIDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows in the mid 30s. .SATURDAY...Partly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers in the afternoon. Highs in the upper 50s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy. A chance of rain showers in the evening, then a slight chance of rain and snow showers after midnight. Lows in the lower 30s. Chance of precipitation 40 percent. .SUNDAY...A chance of snow showers in the morning. Partly cloudy with a chance of rain showers. Highs in the mid 50s. Chance of precipitation 30 percent. $$ WYZ029-191000- Flaming Gorge- 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy and windy. Lows around 30. West winds 20 to 30 mph with gusts up to 50 mph. .MONDAY...Mostly cloudy in the morning, then becoming partly cloudy. Windy with highs around 50. West winds 20 to 30 mph with gusts up to 45 mph. .MONDAY NIGHT...Mostly clear and windy. Lows in the lower 30s. West winds 20 to 30 mph with gusts up to 45 mph, diminishing to 15 to 20 mph with gusts up to 35 mph after midnight. .TUESDAY...Mostly sunny and breezy. Highs around 60. West winds 15 to 25 mph with gusts up to 35 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the upper 30s. Northwest winds 20 to 25 mph with gusts up to 35 mph in the evening. .WEDNESDAY...Sunny, breezy with highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Mostly sunny and breezy. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear and breezy. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SATURDAY...Partly cloudy. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s. .SUNDAY...Mostly sunny. Highs around 70. $$ WYZ022-191000- Casper Mountain- 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain showers with a slight chance of thunderstorms late this evening, then rain and snow showers after midnight. Little or no snow accumulation. Breezy with lows in the lower 30s. Northwest winds 15 to 20 mph. Gusts up to 35 mph after midnight. Chance of precipitation 80 percent. .MONDAY...Rain and snow showers. Storm total snow accumulation around an inch. Breezy, cooler with highs in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain and snow showers in the evening, then partly cloudy after midnight. Breezy with lows around 30. Northwest winds 15 to 20 mph, becoming west 10 to 15 mph after midnight. Chance of precipitation 40 percent. .TUESDAY...Partly cloudy. Rain showers likely with a slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 50s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain and snow showers in the evening, then mostly clear after midnight. Lows in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of precipitation 30 percent. .WEDNESDAY...Mostly sunny with a chance of rain showers. A chance of snow showers in the morning, then a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the mid 50s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Mostly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the lower 40s. Chance of rain 30 percent. .SUNDAY...Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent. $$ WYZ002-191000- Absaroka Mountains- 1152 PM MDT Sun May 18 2025 .TONIGHT...A chance of rain showers late this evening. Cloudy with a chance of snow showers. Snow accumulation up to 2 inches. Lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 50 percent. .MONDAY...Mostly cloudy with a chance of snow showers. A chance of rain showers in the afternoon. Breezy with highs in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 30 percent. .MONDAY NIGHT...Partly cloudy and breezy. Lows in the mid 20s. West winds 15 to 20 mph with gusts up to 35 mph. .TUESDAY...Partly cloudy. A chance of snow showers in the morning, then snow showers, a chance of thunderstorms and rain showers in the afternoon. Little or no snow accumulation. Breezy with highs in the lower 40s. West winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of precipitation 80 percent. .TUESDAY NIGHT...Partly cloudy. Snow showers likely with possible rain showers and thunderstorms in the evening, then a slight chance of snow showers after midnight. Light snow accumulation possible. Breezy with lows in the mid 20s. West winds 15 to 20 mph with gusts up to 40 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of precipitation 60 percent. .WEDNESDAY...Partly cloudy with a chance of snow showers. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 40s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows around 30. .THURSDAY...Partly cloudy. A chance of rain showers, thunderstorms and snow showers in the afternoon. Breezy with highs in the lower 50s. Chance of precipitation 40 percent. .THURSDAY NIGHT...Partly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 30s. Chance of precipitation 40 percent. .FRIDAY...Mostly sunny. A chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy with a slight chance of rain and snow showers. Lows in the mid 30s. Chance of precipitation 20 percent. .SATURDAY...Partly cloudy. A slight chance of rain and snow showers in the morning, then rain showers likely with a chance of snow showers in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 50s. Chance of precipitation 60 percent. .SATURDAY NIGHT...Partly cloudy with a chance of rain and snow showers. Lows in the lower 30s. Chance of precipitation 40 percent. .SUNDAY...Partly cloudy with a chance of rain and snow showers. A slight chance of thunderstorms in the afternoon. Highs around 50. Chance of precipitation 40 percent. $$ WYZ007-191000- Owl Creek and Bridger Mountains- 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain showers late this evening, then rain showers with snow showers likely after midnight. Snow accumulation up to 4 inches. Windy with lows in the mid 30s. North winds 20 to 30 mph with gusts up to 50 mph. Chance of precipitation 80 percent. .MONDAY...Mostly cloudy with snow showers likely. Rain showers likely, mainly in the morning. Snow accumulation up to 4 inches. Windy with highs in the mid 40s. North winds 20 to 30 mph with gusts up to 50 mph. Chance of precipitation 60 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of snow showers in the evening, then mostly clear after midnight. Breezy with lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph, becoming west around 10 mph with gusts up to 20 mph after midnight. Chance of precipitation 30 percent. .TUESDAY...Mostly sunny in the morning, then partly cloudy with rain showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 50s. West winds around 10 mph, becoming northwest in the afternoon. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear with a slight chance of rain showers after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a chance of rain showers. A chance of snow showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. .THURSDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. A chance of rain showers, mainly in the evening. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the mid 40s. .SUNDAY...Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. $$ WYZ008-191000- Bighorn Mountains West- 1152 PM MDT Sun May 18 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT MONDAY NIGHT... .TONIGHT...Rain showers. Snow showers. Snow accumulation up to 6 inches. Breezy with lows in the lower 30s. Northwest winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 80 percent. .MONDAY...Snow showers with rain showers likely. Storm total snow accumulation of 1 to 3 inches. Breezy with highs in the upper 30s. Northwest winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of rain showers in the evening. A chance of snow showers. Breezy with lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 30 percent. .TUESDAY...Partly cloudy. A chance of snow and rain showers in the morning, then rain showers, snow showers with a chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 80 percent. .TUESDAY NIGHT...Partly cloudy. Rain showers, snow showers likely with a slight chance of thunderstorms in the evening, then a chance of rain and snow showers after midnight. Little or no snow accumulation. Lows in the lower 30s. Northwest winds 10 to 15 mph. Chance of precipitation 60 percent. .WEDNESDAY...Partly cloudy with snow showers likely with a chance of rain showers in the morning, then mostly sunny with snow showers with rain showers with possible thunderstorms in the afternoon. Little or no snow accumulation. Highs in the upper 40s. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy. Rain showers, snow showers likely with a slight chance of thunderstorms in the evening, then a chance of rain and snow showers after midnight. Little or no snow accumulation. Lows in the upper 30s. Chance of precipitation 60 percent. .FRIDAY...Partly cloudy. A chance of rain and snow showers in the morning, then rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the upper 50s. Chance of precipitation 60 percent. .FRIDAY NIGHT...Partly cloudy with a chance of rain showers. A slight chance of snow showers after midnight. Lows in the lower 40s. Chance of precipitation 30 percent. .SATURDAY...Partly cloudy. A chance of rain showers in the morning, then rain showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Partly cloudy. Rain showers likely in the evening, then a chance of rain and snow showers after midnight. Little or no snow accumulation. Lows in the upper 30s. Chance of precipitation 60 percent. .SUNDAY...Partly cloudy with a chance of rain showers. A chance of snow showers in the morning, then a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the mid 50s. Chance of precipitation 50 percent. $$ WYZ009-191000- Bighorn Mountains Southeast- 1152 PM MDT Sun May 18 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT MONDAY NIGHT... .TONIGHT...Rain showers, snow showers with a slight chance of thunderstorms late this evening, then rain and snow showers after midnight. Snow may be heavy at times late this evening. Snow accumulation up to 7 inches. Windy with lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph, increasing to 20 to 30 mph with gusts up to 45 mph after midnight. Chance of precipitation 80 percent. .MONDAY...Snow and rain showers. Storm total snow accumulation of 1 to 3 inches. Windy with highs in the upper 30s. Northwest winds 20 to 30 mph with gusts up to 50 mph. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with a chance of snow and rain showers in the evening, then partly cloudy after midnight. Breezy with lows in the lower 30s. Northwest winds 15 to 20 mph. Gusts up to 40 mph in the evening. Chance of precipitation 30 percent. .TUESDAY...Partly cloudy. A chance of snow showers in the morning, then rain showers likely with pockets of snow showers and thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 80 percent. .TUESDAY NIGHT...Partly cloudy with snow showers likely with possible rain showers and thunderstorms in the evening, then mostly clear with a slight chance of rain and snow showers after midnight. Little or no snow accumulation. Lows in the lower 30s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of precipitation 60 percent. .WEDNESDAY...Mostly sunny with snow showers likely with a chance of rain showers in the morning, then partly cloudy with rain showers likely with pockets of snow showers and thunderstorms in the afternoon. Little or no snow accumulation. Highs around 50. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs around 60. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the evening, then a chance of snow showers after midnight. Lows in the upper 30s. Chance of precipitation 40 percent. .FRIDAY...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of rain showers, mainly in the evening. Lows in the lower 40s. Chance of rain 30 percent. .SATURDAY...Partly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 60s. Chance of rain 40 percent. .SATURDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Breezy with lows around 40. Chance of rain 40 percent. .SUNDAY...Partly cloudy with a chance of rain showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. Chance of rain 50 percent. $$ WYZ012-191000- Teton and Gros Ventre Mountains- 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain showers likely late this evening. Cloudy with snow showers likely. Snow accumulation up to 3 inches. Lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 60 percent. .MONDAY...Partly cloudy. A chance of snow showers in the morning. Breezy with highs in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 30 percent. .MONDAY NIGHT...Partly cloudy. A chance of snow showers after midnight. Lows in the mid 20s. West winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of snow 30 percent. .TUESDAY...Partly cloudy. A chance of snow showers in the morning, then snow showers, a chance of thunderstorms and rain showers in the afternoon. Little or no snow accumulation. Highs in the lower 40s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 80 percent. .TUESDAY NIGHT...Partly cloudy with snow showers likely with possible rain showers and thunderstorms in the evening, then mostly clear after midnight. Little or no snow accumulation. Breezy with lows in the mid 20s. Southwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of precipitation 60 percent. .WEDNESDAY...Mostly sunny. Highs in the upper 40s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. .THURSDAY...Partly cloudy. A chance of rain showers, thunderstorms and snow showers in the afternoon. Highs in the mid 50s. Chance of precipitation 40 percent. .THURSDAY NIGHT...Partly cloudy with a chance of rain and snow showers in the evening, then mostly clear after midnight. Lows in the lower 30s. Chance of precipitation 30 percent. .FRIDAY...Mostly sunny. A slight chance of rain showers in the afternoon. Highs in the mid 50s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. .SATURDAY...Partly cloudy. A slight chance of rain and snow showers in the morning, then a chance of rain showers in the afternoon. Highs in the mid 50s. Chance of precipitation 40 percent. .SATURDAY NIGHT...Partly cloudy. A chance of rain and snow showers, mainly in the evening. Lows in the lower 30s. Chance of precipitation 30 percent. .SUNDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain and snow showers in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent. $$ WYZ014-191000- Wind River Mountains West- 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy. A chance of snow and rain showers late this evening, then snow showers likely after midnight. Snow accumulation up to 4 inches. Lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 60 percent. .MONDAY...Mostly cloudy with a chance of snow showers. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Storm total snow accumulation of 1 to 3 inches possible. Breezy with highs in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 50 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the lower 20s. Northwest winds 15 to 20 mph. Gusts up to 35 mph in the evening. .TUESDAY...Partly cloudy. A chance of snow showers in the morning, then snow showers likely with possible rain showers and thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the lower 40s. West winds 15 to 25 mph with gusts up to 40 mph. Chance of precipitation 60 percent. .TUESDAY NIGHT...Partly cloudy with a slight chance of snow showers in the evening, then mostly clear after midnight. Breezy with lows in the lower 20s. West winds 20 to 25 mph with gusts up to 40 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of snow 20 percent. .WEDNESDAY...Mostly sunny and breezy. Highs in the upper 40s. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 20s. .THURSDAY...Partly cloudy. A chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly clear. A slight chance of rain and snow showers in the evening. Breezy with lows in the lower 30s. Chance of precipitation 20 percent. .FRIDAY...Mostly sunny. A slight chance of. Highs in the mid 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. .SATURDAY...Partly cloudy. A chance of rain and snow showers in the afternoon. Breezy with highs in the upper 50s. Chance of precipitation 30 percent. .SATURDAY NIGHT...Partly cloudy with a chance of rain and snow showers in the evening, then mostly clear with a slight chance of rain and snow showers after midnight. Breezy with lows in the lower 30s. Chance of precipitation 30 percent. .SUNDAY...Mostly sunny. A slight chance of rain and snow showers in the morning, then a chance of rain and snow showers in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent. $$ WYZ015-191000- Wind River Mountains East- 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy. A chance of snow and rain showers late this evening, then snow showers likely with a chance of rain showers after midnight. Snow accumulation around 5 inches. Breezy with lows in the mid 20s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 60 percent. .MONDAY...Mostly cloudy. Snow showers likely in the morning, then a chance of snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Storm total snow accumulation of 2 to 4 inches. Breezy with highs in the upper 30s. Northwest winds 15 to 25 mph. Gusts up to 35 mph, increasing to 45 mph in the afternoon. Chance of precipitation 60 percent. .MONDAY NIGHT...Partly cloudy with a chance of snow showers in the evening, then mostly clear after midnight. Breezy with lows in the mid 20s. West winds 15 to 25 mph. Gusts up to 45 mph, decreasing to 35 mph after midnight. Chance of snow 30 percent. .TUESDAY...Mostly sunny with a chance of snow showers in the morning, then partly cloudy with snow showers, rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy with highs in the lower 40s. West winds 20 to 30 mph. Gusts up to 40 mph, increasing to 50 mph in the afternoon. Chance of precipitation 70 percent. .TUESDAY NIGHT...Mostly clear. A chance of snow showers with a slight chance of rain showers in the evening. Windy with lows in the mid 20s. West winds 20 to 30 mph with gusts up to 50 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of precipitation 30 percent. .WEDNESDAY...Mostly sunny with a slight chance of snow showers. A slight chance of rain showers in the afternoon. Breezy with highs in the upper 40s. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the upper 20s. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 40 percent. .THURSDAY NIGHT...Mostly clear. A chance of rain and snow showers in the evening. Breezy with lows in the lower 30s. Chance of precipitation 30 percent. .FRIDAY...Mostly sunny. A slight chance of rain and snow showers in the afternoon. Breezy with highs in the mid 50s. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy with a slight chance of rain and snow showers. Lows in the mid 30s. Chance of precipitation 20 percent. .SATURDAY...Partly cloudy. A chance of rain and snow showers in the afternoon. Breezy with highs in the upper 50s. Chance of precipitation 40 percent. .SATURDAY NIGHT...Partly cloudy with a chance of rain and snow showers in the evening, then mostly clear with a slight chance of rain and snow showers after midnight. Breezy with lows in the lower 30s. Chance of precipitation 30 percent. .SUNDAY...Mostly sunny with a slight chance of rain and snow showers in the morning, then partly cloudy with a chance of rain and snow showers in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. $$ WYZ019-191000- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1152 PM MDT Sun May 18 2025 .TONIGHT...Rain showers. Snow showers likely after midnight. Snow accumulation up to 3 inches. Breezy with lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 80 percent. .MONDAY...Cloudy with rain showers likely. Snow showers likely, mainly in the morning. Snow accumulation up to 1 inch. Breezy with highs in the mid 40s. Northwest winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 60 percent. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Breezy with lows in the lower 30s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. .TUESDAY...Mostly sunny. A chance of rain showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. West winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Breezy with lows in the lower 30s. West winds 15 to 20 mph with gusts up to 40 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny. A chance of rain showers in the afternoon. Breezy with highs in the lower 60s. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Partly cloudy. A slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Breezy with lows in the lower 40s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 70s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Breezy with lows in the lower 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ WYZ024-191000- Salt River and Wyoming Ranges- 1152 PM MDT Sun May 18 2025 .TONIGHT...Cloudy with a 40 percent chance of snow showers. Breezy with lows in the mid 20s. West winds 15 to 25 mph with gusts up to 40 mph. .MONDAY...Mostly cloudy with a chance of snow showers in the morning, then partly cloudy in the afternoon. Breezy with highs around 40. Northwest winds 15 to 25 mph with gusts up to 40 mph. Chance of snow 30 percent. .MONDAY NIGHT...Mostly clear. A chance of snow showers after midnight. Breezy with lows in the mid 20s. West winds 20 to 25 mph with gusts up to 40 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of snow 30 percent. .TUESDAY...Partly cloudy. A chance of snow and rain showers in the morning, then rain showers, snow showers likely with a chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. West winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 70 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the upper 20s. West winds 15 to 20 mph with gusts up to 35 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. .WEDNESDAY...Mostly sunny and breezy. Highs in the lower 50s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 30s. .THURSDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 60. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a chance of rain showers in the afternoon. Breezy with highs in the lower 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Mostly clear with a slight chance of rain showers. Lows in the mid 30s. Chance of rain 20 percent. .SUNDAY...Mostly sunny with a slight chance of rain showers. Highs around 60. Chance of rain 20 percent. $$ WYZ030-191000- East Sweetwater County- Including the city of Wamsutter 1152 PM MDT Sun May 18 2025 .TONIGHT...Mostly cloudy. A chance of rain showers late this evening, then rain and snow showers likely after midnight. Little or no snow accumulation. Breezy with lows around 30. West winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 60 percent. .MONDAY...Mostly cloudy. Snow and rain showers likely in the morning, then a chance of rain showers in the afternoon. Snow accumulation up to 1 inch. Breezy with highs around 50. West winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 60 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows around 30. West winds 15 to 25 mph. Gusts up to 45 mph, decreasing to 35 mph after midnight. .TUESDAY...Mostly sunny. A slight chance of. Breezy with highs around 60. West winds 15 to 25 mph with gusts up to 35 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 30s. West winds 20 to 25 mph with gusts up to 35 mph, diminishing to around 10 mph after midnight. .WEDNESDAY...Sunny, breezy with highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s. .THURSDAY...Mostly sunny and breezy. Highs in the mid 70s. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Partly cloudy and breezy. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the lower 40s. .SUNDAY...Mostly sunny. A slight chance of. Highs around 70. $$