- Clothing
- Warm jacket and comfortable layers recommended.
Tomorrow's Weather Forecast - Ottawa
Tomorrow's weather in Ottawa. high 23°C (73°F), low 9°C (48°F). Overcast.
Tomorrow’s Outlook
Tomorrow will be 5°C warmer than today. Expect pleasant, mostly clear skies with little chance of rain. Humidity holds around 79%, giving the air a damp, heavy feel even without much heat behind it. A light breeze near 14 km/h is expected. Sunrise is at 6:37 AM and sunset at 7:19 PM, for about 12h 42m of daylight.
- Tomorrow
- 23°/ 9°
- Today18° / 8°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon13°
- Rain probability
- 0%
- Wind speed
- 9 km/h
AfternoonNoon – 6 PM22°
- Rain probability
- 0%
- Wind speed
- 14 km/h
Evening6 PM – Midn20°
- Rain probability
- 11%
- Wind speed
- 8 km/h
NightMidn – 6 AM11°
- Rain probability
- 0%
- Wind speed
- 6 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Good conditions for outdoor activities.
- Travel
- Standard travel conditions expected.
Sunrise & Sunset
Sunrise
Dawn 6:07 AMTotal Daylight
Full day forecastSolar noon 12:58 PM
Sunset
Dusk 7:49 PMvs today-3 min daylight
Sunrise shift1 min later
Sunset shift2 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Ottawa is forecast to reach a high of 23°C tomorrow, with an overnight low around 9°C. That's 1° above the long-term average high of 22°C for this time of year. Expect little chance of rain (11% probability) and a gentle breeze averaging 14 km/h. Air quality is currently good (AQI 50), with no notable outdoor health concerns.
Today vs Normal
18°C-4° below normal
The long-term average high for today is 22°C.
7 of the last 28 days with published data ran above normal.
It continues that pattern - today's forecast is also running below normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Good
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.