FPCN48 CWAO 242300 ULTRAVIOLET (UV) INDEX FORECAST FOR CANADIAN CITIES ISSUED BY ENVIRONMENT CANADA AT 7:00 P.M. EDT THURSDAY 24 APRIL 2025 FOR FRIDAY. UV INDEX IS RELATED TO SKY CONDITIONS AND PRECIPITATIONS. UV INDEX WOULD BE HIGHER THAN STATED DURING SUNNY BREAKS OR IF WEATHER CONDITIONS IMPROVE. ALL TIMES ARE IN LOCAL TIME. FRIDAY LOCATION WEATHER FORECAST UV INDEX CATEGORY TIME ABOVE 3 RESOLUTE A MIX OF SUN AND CLOUD 2 LOW NONE INUVIK A MIX OF SUN AND CLOUD 2 LOW NONE RANKIN INLET A MIX OF SUN AND CLOUD 3 MODERATE 11 AM TO 3 PM YELLOWKNIFE PERIODS OF LIGHT SNOW 1 LOW NONE WHITEHORSE CHANCE OF SHOWERS 2 LOW NONE VANCOUVER SUNNY 5 MODERATE 10 AM TO 4 PM VICTORIA SUNNY 5 MODERATE 10 AM TO 4 PM KAMLOOPS SUNNY 5 MODERATE 10 AM TO 3 PM NANAIMO MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM PORT HARDY CLEARING 3 MODERATE 11 AM TO 3 PM PRINCE RUPERT CHANCE OF SHOWERS 4 MODERATE 12 PM TO 4 PM KELOWNA SUNNY 5 MODERATE 9 AM TO 3 PM PRINCE GEORGE CHANCE OF SHOWERS 4 MODERATE 10 AM TO 3 PM CRANBROOK SUNNY 5 MODERATE 10 AM TO 4 PM CASTLEGAR SUNNY 5 MODERATE 10 AM TO 4 PM EDMONTON MAINLY SUNNY 4 MODERATE 10 AM TO 4 PM CALGARY SUNNY 5 MODERATE 10 AM TO 4 PM LETHBRIDGE SUNNY 5 MODERATE 10 AM TO 4 PM RED DEER SUNNY 5 MODERATE 10 AM TO 4 PM MEDICINE HAT SUNNY 5 MODERATE 10 AM TO 4 PM BANFF SUNNY 5 MODERATE 10 AM TO 4 PM GRANDE PRAIRIE MAINLY SUNNY 4 MODERATE 11 AM TO 4 PM SASKATOON MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM REGINA MAINLY SUNNY 5 MODERATE 9 AM TO 3 PM YORKTON MAINLY SUNNY 5 MODERATE 9 AM TO 3 PM THOMPSON MAINLY SUNNY 4 MODERATE 10 AM TO 4 PM WINNIPEG SUNNY 5 MODERATE 10 AM TO 4 PM THUNDER BAY CHANCE OF SHOWERS 5 MODERATE 11 AM TO 5 PM SUDBURY PERIODS OF RAIN 4 MODERATE 10 AM TO 12 PM WINDSOR CHANCE OF SHOWERS 7 HIGH 10 AM TO 4 PM TORONTO CHANCE OF SHOWERS 7 HIGH 10 AM TO 4 PM BARRIE CHANCE OF SHOWERS 5 MODERATE 9 AM TO 4 PM LONDON CHANCE OF SHOWERS 5 MODERATE 9 AM TO 4 PM OTTAWA CHANCE OF SHOWERS 6 HIGH 9 AM TO 3 PM KINGSTON CHANCE OF SHOWERS 5 MODERATE 9 AM TO 4 PM MONTREAL A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 4 PM SHERBROOKE A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 3 PM QUEBEC MAINLY SUNNY 6 HIGH 9 AM TO 4 PM STE-ADELE A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 3 PM FREDERICTON A FEW SHOWERS 6 HIGH 10 AM TO 4 PM SAINT JOHN NB A FEW SHOWERS 6 HIGH 10 AM TO 4 PM SYDNEY CHANCE OF SHOWERS 5 MODERATE 9 AM TO 3 PM HALIFAX A FEW SHOWERS 6 HIGH 12 PM TO 4 PM CHARLOTTETOWN SHOWERS 2 LOW NONE ST. JOHN'S NF A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 3 PM GOOSE BAY FLURRIES OR RAIN SHOWERS 3 MODERATE 11 AM TO 2 PM UV CATEGORIES UV INDEX RANGE (ROUNDED VALUES) EXTREME 11 OR HIGHER VERY HIGH 8 TO 10 HIGH 6 TO 7 MODERATE 3 TO 5 LOW 2 OR LESS FOR SUN PROTECTION TIPS YOU CAN VISIT ENVIRONMENT CANADA'S WEB SITE AT WWW.CANADA.CA/UV-INDEX.