Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Saturday, December 20, 2025
01:00 |
-6° feels like: -11° |
Overcast
Relative humidity: 63%, pressure: 747 mm Precipitations: 0.0 mm Wind: 14 km/h, southwest |
04:00 |
-5° feels like: -11° |
Partly cloudy
Relative humidity: 67%, pressure: 746 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
07:00 |
-5° feels like: -11° |
Overcast
Relative humidity: 70%, pressure: 745 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
10:00 |
-2° feels like: -8° |
Overcast
Relative humidity: 65%, pressure: 743 mm Precipitations: 0.0 mm Wind: 25 km/h, south |
13:00 |
+1° feels like: +-5° |
Overcast
Relative humidity: 56%, pressure: 739 mm Precipitations: 0.0 mm Wind: 29 km/h, south |
16:00 |
+3° feels like: +-1° |
Overcast
Relative humidity: 49%, pressure: 738 mm Precipitations: 0.0 mm Wind: 22 km/h, southwest |
19:00 |
+3° feels like: +-2° |
Partly cloudy
Relative humidity: 63%, pressure: 739 mm Precipitations: 0.1 mm Wind: 18 km/h, southwest |
22:00 |
+1° feels like: +-5° |
Clear
Relative humidity: 66%, pressure: 740 mm Precipitations: 0.0 mm Wind: 22 km/h, southwest |
01:00 |
-1° feels like: -7° |
Mainly sunny
Relative humidity: 59%, pressure: 743 mm Precipitations: 0.0 mm Wind: 25 km/h, west |
04:00 |
-5° feels like: -12° |
Overcast
Relative humidity: 54%, pressure: 747 mm Precipitations: 0.0 mm Wind: 25 km/h, northwest |