Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 19°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

• Sunday
  20th Sep
  19
  8
  
  7
  5
• Monday
  21st Sep
  14
  8
  
  7
  4
• Tuesday
  22nd Sep
  17
  7
  
  6
  4
• Wednesday
  23rd Sep
  19
  7
  
  11
  5
• Thursday
  24th Sep
  19
  7
  
  9
  5

5-day weather forecast updated at 04:00 on Sunday 20th September 2026 GMT

More about Ottawa

• 
  Best time to visit
• 
  Weather by month
• 
  Destinations
• 
  Travel guide
• 
  Deals & discounts

Ottawa by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ontario

• TUI
• Travelsphere
• Air Canada
• Hilton

Canadian Affair: Latest special offers on holidays

Sale

• Save on holidays to Canada with top deals & discounts
• Book holidays, cruises, ski breaks & tours to Canada
• Offers include discounts, upgrades & more

Go to Canadian Affair deal >>

View all Canadian Affair offers

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 Sunday 20th September 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

• 19
  °C maximum temperature
• 8
  °C minimum temperature
• 
  broken clouds
• 7
  hours of sunshine
• 5
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 14
  kph wind from NE

Back to top

Ottawa weather for Monday 21st September 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

• 14
  °C maximum temperature
• 8
  °C minimum temperature
• 
  scattered clouds
• 7
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 14
  °C wind chill
• 15
  kph wind from N

Back to top

Ottawa weather for Tuesday 22nd September 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.

• 17
  °C maximum temperature
• 7
  °C minimum temperature
• 
  broken clouds
• 6
  hours of sunshine
• 4
  UV index (Moderate)
• 0
  mm of rainfall expected
• 17
  °C wind chill
• 12
  kph wind from NE

Back to top

Ottawa weather for Wednesday 23rd September 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

• 19
  °C maximum temperature
• 7
  °C minimum temperature
• 
  scattered clouds
• 11
  hours of sunshine
• 5
  UV index (Moderate)
• 0
  mm of rainfall expected
• 19
  °C wind chill
• 14
  kph wind from NE

Back to top

Ottawa weather for Thursday 24th September 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-east.

• 19
  °C maximum temperature
• 7
  °C minimum temperature
• 
  scattered clouds
• 9
  hours of sunshine
• 5
  UV index (Moderate)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 9
  kph wind from NE

Back to top

Canadian Affair: Latest special offers on holidays

Sale

• Save on holidays to Canada with top deals & discounts
• Book holidays, cruises, ski breaks & tours to Canada
• Offers include discounts, upgrades & more

Go to Canadian Affair deal >>

View all Canadian Affair offers

More about Ontario

Related posts

Popular travel offers

Explore holiday destinations

• Beach holidays
• City breaks
• Family holidays
• Half term holidays
• Spring holidays
• Summer holidays
• Autumn holidays
• Winter sun holidays
• Honeymoons
• Coolcations
• Compare places
• Ski resorts

More holidays

Save with latest deals & discounts

• Holiday offers
• Top travel brands
• Airlines & flights
• Discount hotels
• TUI
• Jet2holidays
• Neilson
• Marella Cruises
• Holiday Extras
• Pierre & Vacances
• Caledonian Travel
• Club Med

More deals

Airport parking

• Manchester Airport
• Stansted Airport
• Bristol Airport
• Luton Airport
• Birmingham Airport
• Edinburgh Airport
• Gatwick Airport
• Glasgow Airport
• Newcastle Airport

More parking

Airport lounges

• Manchester Airport
• Birmingham Airport
• Bristol Airport
• Edinburgh Airport
• Glasgow Airport
• Heathrow Airport
• Newcastle Airport
• Stansted Airport
• Gatwick Airport

More lounges

Top ^