Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 45°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 19th March 2026 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 19th March 2026

Expect mostly cloudy with light snow in Ontario with a maximum temperature of 45°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 6% chance of some snow and a moderate breeze of 12 mph from the west.

  • 45°F maximum temperature45
    °F maximum temperature
  • 30°F minimum temperature30
    °F minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 6% chance of some snow6
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 39°F wind chill39
    °F wind chill
  • Moderate breeze of 12 mph from the West12
    mph wind from W

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Ontario weather for Friday 20th March 2026

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 41°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 12 mph from the south-east.

  • 41°F maximum temperature41
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 82% chance of some rain82
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 34°F wind chill34
    °F wind chill
  • Gentle breeze of 12 mph from the South-East12
    mph wind from SE

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Ontario weather for Saturday 21st March 2026

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 46°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 14 mph from the west.

  • 46°F maximum temperature46
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 39°F wind chill39
    °F wind chill
  • Moderate breeze of 14 mph from the West14
    mph wind from W

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Ontario weather for Sunday 22nd March 2026

Expect cloudy with sleet or snow in Ontario with a maximum temperature of 45°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 63% chance of some sleet or snow and a moderate breeze of 14 mph from the north-east.

  • 45°F maximum temperature45
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 63% chance of some sleet or snow63
    % chance of some sleet or snow
  • 5-10 mm of sleet/snow expected<10
    mm of sleet/snow expected
  • 37°F wind chill37
    °F wind chill
  • Moderate breeze of 14 mph from the North-East14
    mph wind from NE

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Ontario weather for Monday 23rd March 2026

Expect clear skies with flurries of snow in Ontario with a maximum temperature of 36°F, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0-2 cm of snow expected with 12% chance of some snow and a moderate breeze of 16 mph from the north.

  • 36°F maximum temperature36
    °F maximum temperature
  • 27°F minimum temperature27
    °F minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 12% chance of some snow12
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 25°F wind chill25
    °F wind chill
  • Moderate breeze of 16 mph from the North16
    mph wind from N

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