Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Saturday, March 21, 2026
17:00 |
+4° feels like: +0° |
Overcast
Relative humidity: 76%, pressure: 743 mm Precipitations: 0.0 mm Wind: 18 km/h, southeast |
20:00 |
+2° feels like: +-3° |
A mix of sun and cloud
Relative humidity: 86%, pressure: 739 mm Precipitations: 0.0 mm Wind: 18 km/h, south |
23:00 |
+3° feels like: +-1° |
A mix of sun and cloud
Relative humidity: 84%, pressure: 738 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
02:00 |
+4° feels like: +1° |
A mix of sun and cloud
Relative humidity: 88%, pressure: 736 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
05:00 |
+7° feels like: +5° |
A mix of sun and cloud
Relative humidity: 90%, pressure: 734 mm Precipitations: 0.0 mm Wind: 7 km/h, southwest |
08:00 |
+7° feels like: +4° |
Overcast
Relative humidity: 93%, pressure: 735 mm Precipitations: 0.1 mm Wind: 11 km/h, west |
11:00 |
+7° feels like: +3° |
Overcast
Relative humidity: 88%, pressure: 738 mm Precipitations: 0.1 mm Wind: 18 km/h, north |
14:00 |
+4° feels like: +-1° |
Overcast
Relative humidity: 83%, pressure: 739 mm Precipitations: 0.4 mm Wind: 25 km/h, north |
17:00 |
+2° feels like: +-4° |
Overcast
Relative humidity: 85%, pressure: 741 mm Precipitations: 0.0 mm Wind: 29 km/h, north |