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Sarnia, ON — 3 hour detailed weather forecast


ON, Canada » Sarnia


Forecast for today, Thursday, December 4, 2025
Detailed forecast - 3 hours intervals

04:00

Partly cloudy
-4°
feels like: -11°
Partly cloudy
Relative humidity: 76%, pressure: 748 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
07:00

A mix of sun and cloud
-6°
feels like: -13°
A mix of sun and cloud
Relative humidity: 70%, pressure: 750 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
10:00

A mix of sun and cloud
-6°
feels like: -14°
A mix of sun and cloud
Relative humidity: 63%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
13:00

Overcast
-7°
feels like: -14°
Overcast
Relative humidity: 57%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
16:00

Sunny
-7°
feels like: -13°
Clear
Relative humidity: 56%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northwest
19:00

Sunny
-9°
feels like: -13°
Clear
Relative humidity: 68%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 7 km/h, west
22:00

Clear
-10°
feels like: -15°
Clear
Relative humidity: 73%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southwest
01:00

Partly cloudy
-10°
feels like: -15°
Partly cloudy
Relative humidity: 71%, pressure: 750 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
04:00

A mix of sun and cloud
-9°
feels like: -14°
A mix of sun and cloud
Relative humidity: 80%, pressure: 749 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southwest
07:00

Mainly sunny
-9°
feels like: -15°
Mainly sunny
Relative humidity: 82%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southwest