Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 20°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 Sunday 20th September 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 Sunday 20th September 2026

Expect broken clouds in Ontario with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

  • 20°C maximum temperature20
    °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
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the North18
    kph wind from N

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Ontario weather for Monday 21st September 2026

Expect broken clouds in Ontario with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 19 kph from the North-East19
    kph wind from NE

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Ontario weather for Tuesday 22nd September 2026

Expect broken clouds in Ontario with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the east.

  • 16°C maximum temperature16
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 23 kph from the East23
    kph wind from E

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Ontario weather for Wednesday 23rd September 2026

Expect overcast skies in Ontario with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the east.

  • 17°C maximum temperature17
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 23 kph from the East23
    kph wind from E

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Ontario weather for Thursday 24th September 2026

Expect broken clouds in Ontario with a maximum temperature of 17°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the east.

  • 17°C maximum temperature17
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 19 kph from the East19
    kph wind from E

Back to top

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  • Book Virgin Atlantic flights from Heathrow & Manchester
  • Fly to popular destinations in the USA, Caribbean & beyond
  • Travel before 31st August 2027 (inclusive)
Go to Virgin Atlantic deal >>

Expires at 23:59 on Wednesday 30th Sep 2026 · View all Virgin Atlantic offers

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