Your local weather forecast for today
Sarnia, ON — 3 hour detailed weather forecast
ON, Canada » Sarnia
Forecast for today, Thursday, June 18, 2026
02:00 |
+18° feels like: +18° |
Showers
Relative humidity: 96%, pressure: 728 mm Precipitations: 15.5 mm Wind: 11 km/h, southwest |
05:00 |
+19° feels like: +19° |
Light showers
Relative humidity: 95%, pressure: 728 mm Precipitations: 0.3 mm Wind: 18 km/h, southwest |
08:00 |
+19° feels like: +19° |
A mix of sun and cloud
Relative humidity: 83%, pressure: 731 mm Precipitations: 0.1 mm Wind: 25 km/h, west |
11:00 |
+20° feels like: +20° |
A mix of sun and cloud
Relative humidity: 66%, pressure: 732 mm Precipitations: 0.0 mm Wind: 25 km/h, west |
14:00 |
+19° feels like: +19° |
A mix of sun and cloud
Relative humidity: 68%, pressure: 735 mm Precipitations: 0.1 mm Wind: 29 km/h, west |
17:00 |
+19° feels like: +19° |
Showers
Relative humidity: 68%, pressure: 736 mm Precipitations: 1.0 mm Wind: 25 km/h, west |
20:00 |
+19° feels like: +19° |
Clear
Relative humidity: 66%, pressure: 738 mm Precipitations: 0.2 mm Wind: 14 km/h, west |
23:00 |
+16° feels like: +16° |
Clear
Relative humidity: 79%, pressure: 740 mm Precipitations: 0.0 mm Wind: 7 km/h, west |
02:00 |
+14° feels like: +14° |
Clear
Relative humidity: 84%, pressure: 740 mm Precipitations: 0.0 mm Wind: 7 km/h, west |
05:00 |
+13° feels like: +13° |
Clear
Relative humidity: 88%, pressure: 740 mm Precipitations: 0.0 mm Wind: 7 km/h, west |