Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Saturday, March 21, 2026
14:00 |
+5° feels like: +2° |
Overcast
Relative humidity: 72%, pressure: 745 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
17:00 |
+3° feels like: +-1° |
Overcast
Relative humidity: 74%, pressure: 742 mm Precipitations: 0.0 mm Wind: 18 km/h, southeast |
20:00 |
+2° feels like: +-2° |
A mix of sun and cloud
Relative humidity: 82%, 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 |
+5° feels like: +2° |
A mix of sun and cloud
Relative humidity: 88%, pressure: 736 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
05:00 |
+6° feels like: +4° |
A mix of sun and cloud
Relative humidity: 91%, pressure: 734 mm Precipitations: 0.0 mm Wind: 7 km/h, southwest |
08:00 |
+6° feels like: +3° |
Overcast
Relative humidity: 94%, pressure: 735 mm Precipitations: 0.1 mm Wind: 7 km/h, west |
11:00 |
+6° feels like: +2° |
Overcast
Relative humidity: 89%, pressure: 737 mm Precipitations: 0.1 mm Wind: 18 km/h, north |
14:00 |
+4° feels like: +-2° |
Overcast
Relative humidity: 83%, pressure: 739 mm Precipitations: 0.4 mm Wind: 25 km/h, north |