FPUS52 KKEY 130806 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 406 AM EDT Thu Mar 13 2025 FLZ076>078-132345- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 406 AM EDT Thu Mar 13 2025 .TODAY...Mostly sunny. Highs near 80. Southeast winds near 10 mph. .TONIGHT...Mostly clear. Lows near 70. Southeast winds 5 to 10 mph, becoming variable and decreasing to near 5 mph. .FRIDAY...Sunny. Highs in the lower 80s. East winds near 5 mph, becoming east to southeast. .FRIDAY NIGHT...Mostly clear. Lows in the lower to mid 70s. Southeast winds 5 to 10 mph, increasing to 10 to 15 mph. .SATURDAY...Mostly sunny. Becoming breezy. Highs lower to mid 80s. Southeast winds near 15 mph, increasing to 15 to 20 mph. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Breezy. Lows in the mid 70s. Highs lower to mid 80s. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. .MONDAY...Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 30 percent. .MONDAY NIGHT...Mostly clear. Breezy. Lows in the mid to upper 60s. Highs in the upper 70s. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Highs in the upper 70s. Lows in the upper 60s. $$ AJP