Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 25°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 Monday 15th 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 Monday 15th December 2025

Expect mostly cloudy with light snow in Ontario with a maximum temperature of 25°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 65% chance of some snow and a moderate breeze of 17 mph from the west.

  • 25°F maximum temperature25
    °F maximum temperature
  • 16°F minimum temperature16
    °F minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 65% chance of some snow65
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 12°F wind chill12
    °F wind chill
  • Moderate breeze of 17 mph from the West17
    mph wind from W

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Ontario weather for Tuesday 16th December 2025

Expect broken clouds in Ontario with a maximum temperature of 36°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the south-west.

  • 36°F maximum temperature36
    °F maximum temperature
  • 19°F minimum temperature19
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 23°F wind chill23
    °F wind chill
  • Fresh breeze of 21 mph from the South-West21
    mph wind from SW

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Ontario weather for Wednesday 17th December 2025

Expect broken clouds in Ontario with a maximum temperature of 39°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the south-west.

  • 39°F maximum temperature39
    °F maximum temperature
  • 30°F minimum temperature30
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 28°F wind chill28
    °F wind chill
  • Fresh breeze of 21 mph from the South-West21
    mph wind from SW

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Ontario weather for Thursday 18th December 2025

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 45°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 17 mph from the south.

  • 45°F maximum temperature45
    °F maximum temperature
  • 32°F minimum temperature32
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 85% chance of some rain85
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Moderate breeze of 17 mph from the South17
    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 36°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 26% chance of some sleet or snow and a fresh breeze of 21 mph from the west.

  • 36°F maximum temperature36
    °F maximum temperature
  • 18°F minimum temperature18
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 26% chance of some sleet or snow26
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • 25°F wind chill25
    °F wind chill
  • Fresh breeze of 21 mph from the West21
    mph wind from W

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