Ontario weather live forecast

Today's maximum temperature in Ontario is expected to be 11°C. Select a day from the live weather forecast for Ontario (Toronto), Canada for more weather parameters.

• Monday
  11th May
  11
  6
  
  8
  5
• Tuesday
  12th May
  12
  4
  
  9
  6
• Wednesday
  13th May
  14
  8
  
  0
  4
• Thursday
  14th May
  13
  8
  
  0
  3
• Friday
  15th May
  19
  8
  
  3
  6

5-day weather forecast updated at 04:00 on Monday 11th May 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.

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.

• 11
  Niagara Falls
• 11
  Ottawa
• 11
  Sudbury
• 11
  Toronto
• 10
  Kingston
• 10
  Thunder Bay

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 Monday 11th May 2026

Expect broken clouds in Ontario with a maximum temperature of 11°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

• 11
  °C maximum temperature
• 6
  °C minimum temperature
• 
  broken clouds
• 8
  hours of sunshine
• 5
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 16
  kph wind from NW

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Ontario weather for Tuesday 12th May 2026

Expect sunshine and showers in Ontario with a maximum temperature of 12°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 94% chance of some rain and a gentle breeze of 19 kph from the south-east.

• 12
  °C maximum temperature
• 4
  °C minimum temperature
• 
  sunshine and showers
• 9
  hours of sunshine
• 6
  UV index (High)
• 94
  % chance of some rain
• <2
  mm of rainfall expected
• 0
  no heat & humidity
• 19
  kph wind from SE

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Ontario weather for Wednesday 13th May 2026

Expect cloudy with some rain in Ontario with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 24 kph from the south-east.

• 14
  °C maximum temperature
• 8
  °C minimum temperature
• 
  cloudy with some rain
• 0
  hours of sunshine
• 4
  UV index (Moderate)
• 65
  % chance of some rain
• <20
  mm of rainfall expected
• 0
  no heat & humidity
• 24
  kph wind from SE

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Ontario weather for Thursday 14th May 2026

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 18 kph from the north-west.

• 13
  °C maximum temperature
• 8
  °C minimum temperature
• 
  mostly cloudy with light rain
• 0
  hours of sunshine
• 3
  UV index (Moderate)
• 24
  % chance of some rain
• <5
  mm of rainfall expected
• 13
  °C wind chill
• 18
  kph wind from NW

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Ontario weather for Friday 15th May 2026

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 19°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 14 kph from the north-west.

• 19
  °C maximum temperature
• 8
  °C minimum temperature
• 
  mostly cloudy with light rain
• 3
  hours of sunshine
• 6
  UV index (High)
• 39
  % chance of some rain
• <2
  mm of rainfall expected
• 19
  °C wind chill
• 14
  kph wind from NW

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