Tomorrow's Weather Forecast - Calgary

Tomorrow's weather in Calgary. high 10°C (50°F), low 4°C (39°F). Overcast.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Cold but dry conditions are expected, with no meaningful rain in the forecast. Humidity holds around 74%, giving the air a damp, heavy feel even without much heat behind it. A light breeze near 12 km/h is expected. Sunrise is at 7:07 AM and sunset at 7:56 PM, for about 12h 49m of daylight.

Tomorrow
10°/ 4°
Today11° / 5°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon
Rain probability
2%
Wind speed
6 km/h
AfternoonNoon – 6 PM
Rain probability
2%
Wind speed
4 km/h
Evening6 PM – Midn
Rain probability
2%
Wind speed
12 km/h
NightMidn – 6 AM
Rain probability
5%
Wind speed
6 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
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Temperature · peaks at +10°C

Planning Advice for Tomorrow

Clothing
Bundle up — heavy coat, scarf, and gloves needed.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 6:37 AM
Total Daylight
Full day forecastSolar noon 1:31 PM
Sunset
Dusk 8:26 PM
vs today-4 min daylight
Sunrise shift2 min later
Sunset shift2 min earlier

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Calgary is forecast to reach a high of 10°C tomorrow, with an overnight low around 4°C. That's 8° below the long-term average high of 18°C for this time of year. It continues a recent pattern — 14 of the last 28 days with published data have run cooler than normal. Expect little chance of rain (5% probability) and a gentle breeze averaging 12 km/h. Air quality is currently good (AQI 25), with no notable outdoor health concerns.

Today vs Normal

11°C-7° below normal

The long-term average high for today is 18°C.

14 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

2026-08-28: 21°C21°2026-08-29: 21°C21°2026-08-30: 16°C16°2026-08-31: 21°C21°2026-09-01: 23°C23°2026-09-02: 21°C21°2026-09-03: 18°C18°2026-09-04: 13°C13°2026-09-05: 11°C11°2026-09-06: 13°C13°2026-09-07: 11°C11°2026-09-08: 18°C18°

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.