Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 28°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

• Tuesday
  26th May
  28
  12
  
  11
  7
• Wednesday
  27th May
  22
  14
  
  9
  4
• Thursday
  28th May
  18
  12
  
  1
  3
• Friday
  29th May
  14
  9
  
  2
  5
• Saturday
  30th May
  18
  7
  
  11
  6

5-day weather forecast updated at 04:00 on Tuesday 26th May 2026 GMT

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The 5-day weather forecast for Ontario (Ottawa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Ottawa weather forecast by day

Below are the detailed weather forecasts for Ottawa for the next 5 days.

Ottawa weather for Tuesday 26th May 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.

• 28
  °C maximum temperature
• 12
  °C minimum temperature
• 
  scattered clouds
• 11
  hours of sunshine
• 7
  UV index (High)
• 0
  mm of rainfall expected
• L
  low heat & humidity
• 27
  kph wind from SW

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Ottawa weather for Wednesday 27th May 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

• 22
  °C maximum temperature
• 14
  °C minimum temperature
• 
  broken clouds
• 9
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 22
  °C wind chill
• 16
  kph wind from NW

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Ottawa weather for Thursday 28th May 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-west.

• 18
  °C maximum temperature
• 12
  °C minimum temperature
• 
  broken clouds
• 1
  hour of sunshine
• 3
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 20
  kph wind from NW

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Ottawa weather for Friday 29th May 2026

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 17 kph from the north-west.

• 14
  °C maximum temperature
• 9
  °C minimum temperature
• 
  mostly cloudy with light rain
• 2
  hours of sunshine
• 5
  UV index (Moderate)
• 68
  % chance of some rain
• <5
  mm of rainfall expected
• 0
  no heat & humidity
• 17
  kph wind from NW

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Ottawa weather for Saturday 30th May 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 18°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

• 18
  °C maximum temperature
• 7
  °C minimum temperature
• 
  scattered clouds
• 11
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 15
  kph wind from N

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• Book early with Crystal Ski for the best deals
• Filter by promotional offers, duration, board basis & more

Go to Crystal Ski deal >>

View all Crystal Ski offers

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