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Sarnia, ON — 3 hour detailed weather forecast


ON, Canada » Sarnia


Forecast for today, Friday, December 5, 2025
Detailed forecast - 3 hours intervals

13:00

A mix of sun and cloud
-2°
feels like: -8°
A mix of sun and cloud
Relative humidity: 38%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 18 km/h, southwest
16:00

Overcast
-3°
feels like: -8°
Overcast
Relative humidity: 47%, pressure: 743 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
19:00

Overcast
-4°
feels like: -10°
Overcast
Relative humidity: 61%, pressure: 742 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
22:00

Overcast
-4°
feels like: -10°
Overcast
Relative humidity: 70%, pressure: 741 mm
Precipitations: 0.0 mm
Wind: 18 km/h, south
01:00

Overcast
-3°
feels like: -9°
Overcast
Relative humidity: 71%, pressure: 739 mm
Precipitations: 0.1 mm
Wind: 18 km/h, southwest
04:00

A mix of sun and cloud
-3°
feels like: -9°
A mix of sun and cloud
Relative humidity: 73%, pressure: 738 mm
Precipitations: 0.0 mm
Wind: 18 km/h, southwest
07:00

Overcast
-3°
feels like: -9°
Overcast
Relative humidity: 71%, pressure: 738 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
10:00

Overcast
-1°
feels like: -6°
Overcast
Relative humidity: 74%, pressure: 740 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
13:00

Overcast
+1°
feels like: +-4°
Overcast
Relative humidity: 63%, pressure: 741 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west