Your local weather forecast for today
St. Catharines, ON — 3 hour detailed weather forecast
ON, Canada » St. Catharines
Forecast for today, Sunday, December 21, 2025
22:00 |
+5° feels like: +0° |
A mix of sun and cloud
Relative humidity: 76%, pressure: 747 mm Precipitations: 0.6 mm Wind: 32 km/h, southwest |
01:00 |
+3° feels like: +-3° |
Clear
Relative humidity: 66%, pressure: 748 mm Precipitations: 0.0 mm Wind: 32 km/h, west |
04:00 |
-3° feels like: -11° |
Overcast
Relative humidity: 72%, pressure: 753 mm Precipitations: 0.0 mm Wind: 29 km/h, west |
07:00 |
-4° feels like: -12° |
Overcast
Relative humidity: 67%, pressure: 756 mm Precipitations: 0.1 mm Wind: 29 km/h, west |
10:00 |
-4° feels like: -11° |
Overcast
Relative humidity: 56%, pressure: 759 mm Precipitations: 0.0 mm Wind: 29 km/h, west |
13:00 |
-2° feels like: -10° |
A mix of sun and cloud
Relative humidity: 58%, pressure: 760 mm Precipitations: 0.0 mm Wind: 32 km/h, west |
16:00 |
-2° feels like: -9° |
Overcast
Relative humidity: 59%, pressure: 762 mm Precipitations: 0.1 mm Wind: 25 km/h, west |
19:00 |
-3° feels like: -9° |
Overcast
Relative humidity: 60%, pressure: 763 mm Precipitations: 0.1 mm Wind: 25 km/h, west |
22:00 |
-3° feels like: -9° |
A mix of sun and cloud
Relative humidity: 61%, pressure: 764 mm Precipitations: 0.1 mm Wind: 18 km/h, west |
01:00 |
-4° feels like: -10° |
Clear
Relative humidity: 59%, pressure: 765 mm Precipitations: 0.0 mm Wind: 14 km/h, southwest |