Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 27°C. 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 Wednesday 10th June 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 Wednesday 10th June 2026

Expect isolated thunderstorms in Ontario with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 15 kph from the west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 41% chance of some rain41
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 15 kph from the West15
    kph wind from W

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Ontario weather for Thursday 11th June 2026

Expect isolated thunderstorms in Ontario with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 16 kph from the south-west.

  • 29°C maximum temperature29
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 74% chance of some rain74
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 16 kph from the South-West16
    kph wind from SW

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Ontario weather for Friday 12th June 2026

Expect isolated thunderstorms in Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 22 kph from the west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 56% chance of some rain56
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 22 kph from the West22
    kph wind from W

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Ontario weather for Saturday 13th June 2026

Expect scattered clouds in Ontario with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

  • 26°C maximum temperature26
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 14 hours of bright sunshine14
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 19 kph from the South-West19
    kph wind from SW

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Ontario weather for Sunday 14th June 2026

Expect mostly cloudy with rain in Ontario with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 50% chance of some rain and a moderate breeze of 21 kph from the west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 50% chance of some rain50
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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