FPCN48 CWAO 241400 ULTRAVIOLET (UV) INDEX FORECAST FOR CANADIAN CITIES ISSUED BY ENVIRONMENT CANADA AT 10:00 A.M. EDT THURSDAY 24 APRIL 2025 FOR THURSDAY. 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. THURSDAY LOCATION WEATHER FORECAST UV INDEX CATEGORY TIME ABOVE 3 RESOLUTE FLURRIES 1 LOW NONE INUVIK FLURRIES 2 LOW NONE RANKIN INLET LIGHT SNOW 3 MODERATE 11 AM TO 3 PM YELLOWKNIFE SUNNY 2 LOW NONE WHITEHORSE CHANCE OF SHOWERS 3 MODERATE 1 PM TO 2 PM 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 SUNNY 5 MODERATE 10 AM TO 4 PM PORT HARDY MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM PRINCE RUPERT MAINLY CLOUDY 4 MODERATE 11 AM TO 3 PM KELOWNA MAINLY SUNNY 5 MODERATE 9 AM TO 3 PM PRINCE GEORGE A MIX OF SUN AND CLOUD 4 MODERATE 10 AM TO 3 PM CRANBROOK MAINLY 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 MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM LETHBRIDGE SUNNY 5 MODERATE 10 AM TO 4 PM RED DEER MAINLY SUNNY 4 MODERATE 10 AM TO 4 PM MEDICINE HAT MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM BANFF MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM GRANDE PRAIRIE MAINLY SUNNY 4 MODERATE 11 AM TO 4 PM SASKATOON A MIX OF SUN AND CLOUD 4 MODERATE 10 AM TO 3 PM REGINA CLEARING 4 MODERATE 10 AM TO 3 PM YORKTON CHANCE OF SHOWERS 5 MODERATE 9 AM TO 3 PM THOMPSON FLURRIES OR RAIN SHOWERS 3 MODERATE 11 AM TO 3 PM WINNIPEG MAINLY SUNNY 5 MODERATE 10 AM TO 4 PM THUNDER BAY SHOWERS OR DRIZZLE 4 MODERATE 11 AM TO 4 PM SUDBURY SHOWERS 5 MODERATE 10 AM TO 4 PM WINDSOR SUNNY 7 HIGH 9 AM TO 5 PM TORONTO CHANCE OF SHOWERS 6 HIGH 10 AM TO 4 PM BARRIE CHANCE OF SHOWERS 6 HIGH 10 AM TO 4 PM LONDON SUNNY 7 HIGH 9 AM TO 4 PM OTTAWA CHANCE OF SHOWERS 6 HIGH 9 AM TO 4 PM KINGSTON CHANCE OF SHOWERS 6 HIGH 9 AM TO 4 PM MONTREAL CHANCE OF SHOWERS 5 MODERATE 9 AM TO 4 PM SHERBROOKE CHANCE OF SHOWERS 6 HIGH 9 AM TO 3 PM QUEBEC CHANCE OF SHOWERS 5 MODERATE 9 AM TO 3 PM STE-ADELE CHANCE OF SHOWERS 4 MODERATE 10 AM TO 3 PM FREDERICTON A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 4 PM SAINT JOHN NB A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 4 PM SYDNEY MAINLY CLOUDY 5 MODERATE 9 AM TO 4 PM HALIFAX A MIX OF SUN AND CLOUD 6 HIGH 9 AM TO 4 PM CHARLOTTETOWN MAINLY CLOUDY 5 MODERATE 10 AM TO 4 PM ST. JOHN'S NF SNOW MIXED WITH RAIN 1 LOW NONE GOOSE BAY MAINLY CLOUDY 4 MODERATE 10 AM TO 3 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.