* NOTE: Corrected and/or amended bulletins are listed first *
FPCN48 CWAO 252200 Ultraviolet (UV) index forecast for Canadian cities issued by Environment Canada at 6:00 p.m. EDT Friday 25 April 2025 for Friday afternoon and Saturday. 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 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 9 am to 4 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 Mainly 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 Saturday Location Weather forecast UV index Category Time above 3 Resolute Flurries 1 Low None Inuvik Mainly cloudy 2 Low None Rankin Inlet A mix of sun and cloud 3 Moderate 11 am to 3 pm Yellowknife Periods of snow 2 Low None Whitehorse Sunny 3 Moderate 12 pm to 4 pm Vancouver Sunny 5 Moderate 10 am to 4 pm Victoria Sunny 5 Moderate 10 am to 4 pm Kamloops Chance of showers 5 Moderate 9 am to 4 pm Nanaimo Sunny 5 Moderate 10 am to 4 pm Port Hardy Mainly sunny 5 Moderate 10 am to 4 pm Prince Rupert Chance of showers 4 Moderate 11 am to 4 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 Mainly sunny 5 Moderate 10 am to 4 pm Edmonton 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 Chance of showers 5 Moderate 10 am to 4 pm Medicine Hat Mainly 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 Sunny 5 Moderate 9 am to 4 pm Regina Mainly sunny 5 Moderate 9 am to 4 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 Sunny 5 Moderate 10 am to 5 pm Sudbury Periods of rain 2 Low None Windsor Chance of showers 5 Moderate 12 pm to 4 pm Toronto Chance of showers 4 Moderate 10 am to 3 pm Barrie A few showers 2 Low None London Chance of showers 3 Moderate 12 pm to 1 pm Ottawa Chance of showers 3 Moderate 12 pm to 1 pm Kingston Chance of showers 5 Moderate 10 am to 1 pm Montreal Periods of rain 2 Low None Sherbrooke Periods of rain 1 Low None Quebec Periods of rain 1 Low None Ste-Adele Rain 1 Low None Fredericton Rain at times heavy 1 Low None Saint John NB Showers 3 Moderate 12 pm to 1 pm Sydney Mainly cloudy 6 High 9 am to 4 pm Halifax Showers or drizzle 6 High 9 am to 1 pm Charlottetown Chance of showers 6 High 9 am to 4 pm St. John's NF Chance of showers 5 Moderate 9 am to 3 pm Goose Bay Sunny 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.