Tomorrow's Weather Forecast - Mississauga

Tomorrow's weather in Mississauga. high 22°C (72°F), low 13°C (55°F). Overcast.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Expect pleasant, mostly clear skies with little chance of rain. Humidity holds around 87%, giving the air a damp, heavy feel even without much heat behind it. Winds stay light and calm, rarely topping 9 km/h. Sunrise is at 6:54 AM and sunset at 7:34 PM, for about 12h 39m of daylight.

Tomorrow
22°/ 13°
Today22° / 11°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon16°
Rain probability
0%
Wind speed
7 km/h
AfternoonNoon – 6 PM21°
Rain probability
4%
Wind speed
9 km/h
Evening6 PM – Midn19°
Rain probability
15%
Wind speed
6 km/h
NightMidn – 6 AM14°
Rain probability
0%
Wind speed
8 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
··
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00

Temperature · peaks at +22°C

Planning Advice for Tomorrow

Clothing
Warm jacket and comfortable layers recommended.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 6:24 AM
Total Daylight
Full day forecastSolar noon 1:14 PM
Sunset
Dusk 8:04 PM
vs today-3 min daylight
Sunrise shift1 min later
Sunset shift1 min earlier

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Mississauga is forecast to reach a high of 22°C tomorrow, with an overnight low around 13°C. That's 1° above the long-term average high of 21°C for this time of year. It continues a recent pattern — 23 of the last 28 days with published data have run warmer than normal. Expect a low chance of rain (15% probability) and a gentle breeze averaging 9 km/h. Air quality is currently good (AQI 22), with no notable outdoor health concerns.

Today vs Normal

22°C+1° above normal

The long-term average high for today is 21°C.

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

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

2026-08-28: 23°C23°2026-08-29: 24°C24°2026-08-30: 22°C22°2026-08-31: 22°C22°2026-09-01: 27°C27°2026-09-02: 26°C26°2026-09-03: 27°C27°2026-09-04: 25°C25°2026-09-05: 24°C24°2026-09-06: 22°C22°2026-09-07: 24°C24°2026-09-08: 24°C24°

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.