Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Wednesday, January 21, 2026
07:00 |
-7° feels like: -15° |
Snow
Relative humidity: 86%, pressure: 748 mm Precipitations: 0.7 mm Wind: 18 km/h, south |
10:00 |
-6° feels like: -13° |
Snow
Relative humidity: 87%, pressure: 745 mm Precipitations: 1.4 mm Wind: 22 km/h, south |
13:00 |
-4° feels like: -11° |
Snow
Relative humidity: 84%, pressure: 742 mm Precipitations: 1.3 mm Wind: 25 km/h, southwest |
16:00 |
-1° feels like: -7° |
Light snow
Relative humidity: 77%, pressure: 741 mm Precipitations: 0.2 mm Wind: 18 km/h, southwest |
19:00 |
-1° feels like: -7° |
Overcast
Relative humidity: 77%, pressure: 741 mm Precipitations: 0.0 mm Wind: 22 km/h, southwest |
22:00 |
-3° feels like: -9° |
Overcast
Relative humidity: 76%, pressure: 742 mm Precipitations: 0.0 mm Wind: 18 km/h, west |
01:00 |
-4° feels like: -10° |
Overcast
Relative humidity: 78%, pressure: 743 mm Precipitations: 0.0 mm Wind: 18 km/h, southwest |
04:00 |
-5° feels like: -11° |
Overcast
Relative humidity: 81%, pressure: 743 mm Precipitations: 0.1 mm Wind: 14 km/h, west |
07:00 |
-6° feels like: -12° |
Overcast
Relative humidity: 85%, pressure: 744 mm Precipitations: 0.2 mm Wind: 14 km/h, west |
10:00 |
-7° feels like: -14° |
A mix of sun and cloud
Relative humidity: 77%, pressure: 745 mm Precipitations: 0.9 mm Wind: 22 km/h, west |