Ottawa, ON Weather

Current Conditions
11°C
Fair Mostly Clear
Today: High 21 °C Low 8°C
Today's Weather Details
Sunrise:5:25
Humidity:50%
Visibility:24 km
Sunset:20:34
Wind:S 7 km/h
Pressure:101.461 rising
Data Source: The Weather Company
Extended Forecast
Saturday
High: 21°C Low: 9°C
POP: 1%
Mostly Cloudy | Rain
Sunday
High: 13°C Low: 11°C
POP: 78%
Rain | Scattered Showers Night
Monday
High: 22°C Low: 12°C
POP: 21%
Partly Cloudy | Fair Mostly Clear
Tuesday
High: 28°C Low: 14°C
POP: 21%
Fair Mostly Sunny | Partly Cloudy Night
Wednesday
High: 23°C Low: 11°C
POP: 10%
Partly Cloudy | Fair Mostly Clear
Thursday
High: 21°C Low: 10°C
POP: 3%
Partly Cloudy | Partly Cloudy Night

Latest Weather News

Frost expected as high heat retreats out of Ottawa

Humidity made way from a crisp wind and cooler temperatures on Thursday in the nation’s capital, prompting a risk of frost. According to Environment Canada, temperatures could fall near or below 0 C…

May 21, 2026 3:40 pm EST EST

Long weekend weather heating up in Ottawa

While showers are still possible, Mother Nature could be making up for the cooler-than-usual start to spring this year with a sunny — and even hot — long weekend. According to Environment Canada,…

May 15, 2026 12:58 pm EST EST

Temperatures well below seasonal in Ottawa with ‘patchy’ frost possible

With lows near zero, it’s possible that frost could develop overnight Monday, Environment Canada warns. A frost advisory was issued by the weather agency as it could damage some crops and plants if…

May 11, 2026 1:28 pm EST EST

50 mm of rain possible in already flooded Ottawa

Heavy rain at times is expected on Wednesday night in the nation’s capital, bringing renewed fears of flooding to already stressed homeowners. Environment Canada warns that the storm passing the city…

April 29, 2026 1:36 pm EST EST