Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 43°F. Select a day from the live weather forecast for Ontario (Toronto), Canada for more weather parameters.

5-day weather forecast updated at 04:00 on Thursday 18th December 2025 GMT

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The 5-day weather forecast for Ontario (Toronto) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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Below are temperatures expected today at popular countries, regions and places in Ontario. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Ontario weather forecast by day

Below are the detailed weather forecasts for Ontario for the next 5 days. The forecasts shown are for Toronto and may not represent the whole of Ontario. Browse more destinations in Ontario to view more weather forecasts.

Ontario weather for Thursday 18th December 2025

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 43°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 68% chance of some rain and a moderate breeze of 16 mph from the south.

  • 43°F maximum temperature43
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 68% chance of some rain68
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 36°F wind chill36
    °F wind chill
  • Moderate breeze of 16 mph from the South16
    mph wind from S

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Ontario weather for Friday 19th December 2025

Expect cloudy with sleet or snow in Ontario with a maximum temperature of 43°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 39% chance of some sleet or snow and a fresh breeze of 24 mph from the west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 27°F minimum temperature27
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 39% chance of some sleet or snow39
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • 34°F wind chill34
    °F wind chill
  • Fresh breeze of 24 mph from the West24
    mph wind from W

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Ontario weather for Saturday 20th December 2025

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 37°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 17 mph from the south.

  • 37°F maximum temperature37
    °F maximum temperature
  • 27°F minimum temperature27
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 32% chance of some rain32
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 28°F wind chill28
    °F wind chill
  • Moderate breeze of 17 mph from the South17
    mph wind from S

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Ontario weather for Sunday 21st December 2025

Expect broken clouds in Ontario with a maximum temperature of 36°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 22 mph from the west.

  • 36°F maximum temperature36
    °F maximum temperature
  • 21°F minimum temperature21
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 25°F wind chill25
    °F wind chill
  • Fresh breeze of 22 mph from the West22
    mph wind from W

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Ontario weather for Monday 22nd December 2025

Expect broken clouds in Ontario with a maximum temperature of 30°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 12 mph from the west.

  • 30°F maximum temperature30
    °F maximum temperature
  • 21°F minimum temperature21
    °F minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • 19°F wind chill19
    °F wind chill
  • Gentle breeze of 12 mph from the West12
    mph wind from W

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  • Discover top Air Canada offers on flights to Canada
  • Browse lowest fares available or search by date
  • Book flights to Toronto, Vancouver, Calgary, Montreal & more
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