Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Sunday, December 21, 2025
01:00 |
-3° feels like: -11° |
Clear
Relative humidity: 51%, pressure: 744 mm Precipitations: 0.0 mm Wind: 32 km/h, west |
04:00 |
-3° feels like: -10° |
Clear
Relative humidity: 51%, pressure: 748 mm Precipitations: 0.0 mm Wind: 25 km/h, northwest |
07:00 |
-7° feels like: -14° |
A mix of sun and cloud
Relative humidity: 51%, pressure: 750 mm Precipitations: 0.0 mm Wind: 22 km/h, west |
10:00 |
-6° feels like: -13° |
A mix of sun and cloud
Relative humidity: 50%, pressure: 753 mm Precipitations: 0.0 mm Wind: 22 km/h, northwest |
13:00 |
-4° feels like: -11° |
Clear
Relative humidity: 46%, pressure: 754 mm Precipitations: 0.0 mm Wind: 22 km/h, west |
16:00 |
-4° feels like: -9° |
Clear
Relative humidity: 48%, pressure: 755 mm Precipitations: 0.0 mm Wind: 11 km/h, west |
19:00 |
-4° feels like: -9° |
Clear
Relative humidity: 53%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, west |
22:00 |
-5° feels like: -10° |
Mainly sunny
Relative humidity: 56%, pressure: 756 mm Precipitations: 0.0 mm Wind: 7 km/h, southwest |
01:00 |
-6° feels like: -11° |
Clear
Relative humidity: 70%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, southwest |
04:00 |
-5° feels like: -10° |
Mainly sunny
Relative humidity: 75%, pressure: 756 mm Precipitations: 0.0 mm Wind: 7 km/h, southwest |