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Sarnia, ON — 3 hour detailed weather forecast


ON, Canada » Sarnia


Forecast for today, Wednesday, March 11, 2026
Detailed forecast - 3 hours intervals

20:00

Light showers
+3°
feels like: +-2°
Light showers
Relative humidity: 85%, pressure: 738 mm
Precipitations: 0.1 mm
Wind: 25 km/h, northwest
23:00

Overcast
+1°
feels like: +-6°
Overcast
Relative humidity: 75%, pressure: 741 mm
Precipitations: 0.0 mm
Wind: 29 km/h, northwest
02:00

Overcast
-1°
feels like: -8°
Overcast
Relative humidity: 72%, pressure: 743 mm
Precipitations: 0.0 mm
Wind: 29 km/h, northwest
05:00

Partly cloudy
-1°
feels like: -8°
Partly cloudy
Relative humidity: 65%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
08:00

Mainly sunny
-2°
feels like: -8°
Mainly sunny
Relative humidity: 67%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
11:00

Partly cloudy

feels like: -5°
Partly cloudy
Relative humidity: 52%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
14:00

Partly cloudy
+2°
feels like: +-3°
Partly cloudy
Relative humidity: 44%, pressure: 746 mm
Precipitations: 0.2 mm
Wind: 25 km/h, northwest
17:00

Mainly sunny
+3°
feels like: +-2°
Mainly sunny
Relative humidity: 39%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 25 km/h, northwest
20:00

Sunny
+1°
feels like: +-2°
Clear
Relative humidity: 62%, pressure: 745 mm
Precipitations: 0.2 mm
Wind: 7 km/h, north