FPCN48 CWAO 171400
Ultraviolet (UV) index forecast for Canadian cities issued by Environment Canada
at 10:00 a.m. EDT Saturday 17 May 2025 for 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.

Saturday
Location       Weather forecast             UV index  Category   Time above 3

Resolute       Flurries                     2         Low        None
Inuvik         Rain showers or flurries     3         Moderate   12 pm to 5 pm
Rankin Inlet   Chance of light snow         4         Moderate   10 am to 3 pm
Yellowknife    Mainly cloudy                4         Moderate   10 am to 4 pm
Whitehorse     Chance of showers            4         Moderate   10 am to 4 pm
Vancouver      Chance of showers            4         Moderate   10 am to 12 pm
Victoria       Chance of showers            4         Moderate   10 am to 4 pm
Kamloops       Chance of showers            6         High        9 am to 2 pm
Nanaimo        Showers                      2         Low        None
Port Hardy     Periods of rain              2         Low        None
Prince Rupert  Periods of rain              2         Low        None
Kelowna        A few showers                5         Moderate    9 am to 12 pm
Prince George  A few showers                4         Moderate   10 am to 12 pm
Cranbrook      Chance of showers            6         High       10 am to 5 pm
Castlegar      A few showers                5         Moderate   10 am to 12 pm
Edmonton       Chance of showers            4         Moderate   10 am to 4 pm
Calgary        Chance of showers            6         High       10 am to 5 pm
Lethbridge     Chance of showers            6         High        9 am to 5 pm
Red Deer       Chance of showers            5         Moderate   10 am to 4 pm
Medicine Hat   Chance of showers            6         High        9 am to 4 pm
Banff          Chance of showers            5         Moderate   10 am to 5 pm
Grande Prairie Chance of showers            5         Moderate   10 am to 4 pm
Saskatoon      A mix of sun and cloud       6         High        9 am to 4 pm
Regina         A mix of sun and cloud       6         High        9 am to 4 pm
Yorkton        A mix of sun and cloud       6         High        9 am to 4 pm
Thompson       Flurries or rain showers     4         Moderate   10 am to 4 pm
Winnipeg       Flurries                     6         High        9 am to 5 pm
Thunder Bay    Chance of showers            5         Moderate   10 am to 5 pm
Sudbury        Showers                      3         Moderate   12 pm to 2 pm
Windsor        Chance of showers            5         Moderate   10 am to 4 pm
Toronto        Chance of showers            6         High        9 am to 4 pm
Barrie         Showers                      4         Moderate   12 pm to 4 pm
London         Chance of showers            5         Moderate   10 am to 4 pm
Ottawa         Showers                      3         Moderate   11 am to 2 pm
Kingston       Chance of showers            6         High        9 am to 2 pm
Montreal       Showers or thunderstorms     5         Moderate    8 am to 2 pm
Sherbrooke     Showers or thunderstorms     3         Moderate   10 am to 2 pm
Quebec         Chance of showers            7         High        9 am to 3 pm
Ste-Adele      Showers or thunderstorms     6         High        9 am to 2 pm
Fredericton    Chance of showers            5         Moderate   10 am to 4 pm
Saint John NB  Showers or drizzle           6         High        9 am to 5 pm
Sydney         A mix of sun and cloud       8         Very high   9 am to 4 pm
Halifax        Mainly cloudy                7         High        9 am to 4 pm
Charlottetown  Chance of showers            6         High        9 am to 5 pm
St. John's NF  Sunny                        7         High        8 am to 4 pm
Goose Bay      Chance of showers            6         High        9 am to 4 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.