Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Wednesday, January 21, 2026
22:00 |
-11° feels like: -19° |
A mix of sun and cloud
Relative humidity: 67%, pressure: 753 mm Precipitations: 0.0 mm Wind: 18 km/h, southwest |
01:00 |
-12° feels like: -18° |
Overcast
Relative humidity: 72%, pressure: 752 mm Precipitations: 0.0 mm Wind: 11 km/h, south |
04:00 |
-9° feels like: -17° |
Overcast
Relative humidity: 75%, pressure: 750 mm Precipitations: 0.1 mm Wind: 18 km/h, south |
07:00 |
-7° feels like: -15° |
Snow
Relative humidity: 85%, pressure: 747 mm Precipitations: 0.7 mm Wind: 18 km/h, south |
10:00 |
-5° feels like: -13° |
Snow
Relative humidity: 86%, pressure: 745 mm Precipitations: 1.7 mm Wind: 22 km/h, south |
13:00 |
-4° feels like: -10° |
Snow
Relative humidity: 81%, pressure: 742 mm Precipitations: 1.4 mm Wind: 22 km/h, southwest |
16:00 |
-2° feels like: -8° |
Light snow
Relative humidity: 80%, pressure: 741 mm Precipitations: 0.2 mm Wind: 18 km/h, southwest |
19:00 |
-2° feels like: -8° |
Overcast
Relative humidity: 80%, pressure: 741 mm Precipitations: 0.1 mm Wind: 18 km/h, southwest |
22:00 |
-3° feels like: -9° |
Overcast
Relative humidity: 75%, pressure: 742 mm Precipitations: 0.1 mm Wind: 18 km/h, west |