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Ontario weather live forecast
Today's maximum temperature in Ontario is expected to be 24°C. Select a day from the live weather forecast for Ontario (Toronto), Canada for more weather parameters.
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Sunday
14th Sep
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Monday
15th Sep
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Tuesday
16th Sep -
Wednesday
17th Sep -
Thursday
18th Sep
5-day weather forecast updated at 04:01 on Sunday 14th September 2025 GMT
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Recommended for Ontario
The 5-day weather forecast for Ontario (Toronto) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.
Top Ontario destinations
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.
All Ontario destinations
- Hamilton
- Kenora
- Kingston
- Moosonee
- Niagara Falls
- North Bay
- Ottawa
- Peawanuk
- Sault Ste. Marie
- Sudbury
- Thunder Bay
- Timmins
- Toronto
- Windsor
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 14th September 2025
Expect scattered clouds in Ontario with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.
- °C maximum temperature
- °C minimum temperature
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scattered clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from NW
Ontario weather for Monday 15th September 2025
Expect sunshine and showers in Ontario with a maximum temperature of 21°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected and a gentle breeze of 14 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
sunshine and showers
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- no heat & humidity
- kph wind from E
Ontario weather for Tuesday 16th September 2025
Expect scattered clouds in Ontario with a maximum temperature of 23°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.
- °C maximum temperature
- °C minimum temperature
-
scattered clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- no heat & humidity
- kph wind from E
Ontario weather for Wednesday 17th September 2025
Expect scattered clouds in Ontario with a maximum temperature of 24°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.
- °C maximum temperature
- °C minimum temperature
-
scattered clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- no heat & humidity
- kph wind from NE
Ontario weather for Thursday 18th September 2025
Expect broken clouds in Ontario with a maximum temperature of 25°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.
- °C maximum temperature
- °C minimum temperature
-
broken clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- no heat & humidity
- kph wind from S
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Metric (°C / mm) | Imperial (°F / inches)
More about Ontario
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