Ontario weather live forecast

Tomorrow's maximum temperature in Ontario is expected to be 24°C.

5-day weather forecast updated at 04:00 on Thursday 12th June 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 12th June 2025

Expect sunshine and showers in Ontario with a maximum temperature of 24°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 10% chance of some rain and a gentle breeze of 19 kph from the north-west.

  • 24°C maximum temperature24
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 10% chance of some rain10
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Gentle breeze of 19 kph from the North-West19
    kph wind from NW

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Ontario weather for Friday 13th June 2025

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 18°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 20 kph from the east.

  • 18°C maximum temperature18
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Moderate breeze of 20 kph from the East20
    kph wind from E

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Ontario weather for Saturday 14th June 2025

Expect sunshine and showers in Ontario with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 18 kph from the east.

  • 19°C maximum temperature19
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 39% chance of some rain39
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the East18
    kph wind from E

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Ontario weather for Sunday 15th June 2025

Expect broken clouds in Ontario with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

  • 21°C maximum temperature21
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Gentle breeze of 15 kph from the East15
    kph wind from E

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Ontario weather for Monday 16th June 2025

Expect broken clouds in Ontario with a maximum temperature of 24°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

  • 24°C maximum temperature24
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Light breeze of 11 kph from the North-East11
    kph wind from NE

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  • Destinations across Europe, Americas, Asia, Africa & beyond
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Metric (°C / mm)  |  Imperial (°F / inches)

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