Ontario Weather Forecast

Check the Ontario weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in Ontario is expected to be 25°C. The weather forecast shown below is for Toronto.

Ontario: 5-day weather forecast

Click on a symbol below to see the daily forecast in detail.

Last updated at 04:03 on Tuesday 19th September 2017 GMT

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Metric (°C / mm)  |  Imperial (°F / inches)

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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 Tuesday 19th September 2017

Below is the Ontario weather forecast for Tuesday 19th September 2017. Expect broken clouds in Ontario with a maximum temperature of 25°C and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the east.

  • 25
    °C maximum temperature
  • 19
    °C minimum temperature
  • broken clouds
  • 2
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 8
    kph wind from E

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Ontario weather for Wednesday 20th September 2017

Below is the Ontario weather forecast for Wednesday 20th September 2017. Expect scattered clouds in Ontario with a maximum temperature of 25°C and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

  • 25
    °C maximum temperature
  • 19
    °C minimum temperature
  • scattered clouds
  • 5
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 10
    kph wind from E

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Ontario weather for Thursday 21st September 2017

Below is the Ontario weather forecast for Thursday 21st September 2017. Expect broken clouds in Ontario with a maximum temperature of 24°C and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

  • 24
    °C maximum temperature
  • 17
    °C minimum temperature
  • broken clouds
  • 5
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 14
    kph wind from E

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Ontario weather for Friday 22nd September 2017

Below is the Ontario weather forecast for Friday 22nd September 2017. Expect scattered clouds in Ontario with a maximum temperature of 23°C and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.

  • 23
    °C maximum temperature
  • 16
    °C minimum temperature
  • scattered clouds
  • 9
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 9
    kph wind from S

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Ontario weather for Saturday 23rd September 2017

Below is the Ontario weather forecast for Saturday 23rd September 2017. Expect clear skies in Ontario with a maximum temperature of 26°C and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

  • 26
    °C maximum temperature
  • 20
    °C minimum temperature
  • clear skies
  • 11
    hours of sunshine
  • 0
    mm of rainfall expected
  • L
    low heat & humidity
  • 7
    kph wind from W

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Ontario weather by month

Check Ontario weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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