Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 23°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:00 on Wednesday 17th June 2026 GMT

More about Ottawa

Ottawa by month

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

Recommended for Ontario

Air Canada: Top flight deals to Canada

  • Discover top Air Canada offers on flights to Canada
  • Browse lowest fares available or search by date
  • Book flights to Toronto, Vancouver, Calgary, Montreal & more
Go to Air Canada deal >>

View all Air Canada 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 Wednesday 17th June 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 23°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a gentle breeze of 15 kph from the south.

  • 23°C maximum temperature23
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 94% chance of some rain94
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Gentle breeze of 15 kph from the South15
    kph wind from S

Back to top

Ottawa weather for Thursday 18th June 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 30-40 mm of rainfall expected with 99% chance of some rain and a moderate breeze of 27 kph from the south-west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 99% chance of some rain99
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • 22°C wind chill22
    °C wind chill
  • Moderate breeze of 27 kph from the South-West27
    kph wind from SW

Back to top

Ottawa weather for Friday 19th June 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 20°C, maximum UV of 7 (High) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a moderate breeze of 24 kph from the west.

  • 20°C maximum temperature20
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 74% chance of some rain74
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 24 kph from the West24
    kph wind from W

Back to top

Ottawa weather for Saturday 20th June 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 18°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a moderate breeze of 20 kph from the west.

  • 18°C maximum temperature18
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 71% chance of some rain71
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Moderate breeze of 20 kph from the West20
    kph wind from W

Back to top

Ottawa weather for Sunday 21st June 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 21°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 14°C minimum temperature14
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 14 kph from the West14
    kph wind from W

Back to top

Air Canada: Top flight deals to Canada

  • Discover top Air Canada offers on flights to Canada
  • Browse lowest fares available or search by date
  • Book flights to Toronto, Vancouver, Calgary, Montreal & more
Go to Air Canada deal >>

View all Air Canada offers

More about Ontario

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^