Your local weather forecast for today
St. Catharines, ON — 3 hour detailed weather forecast
ON, Canada » St. Catharines
Forecast for today, Thursday, September 18, 2025
02:00 |
+18° feels like: +18° |
Mainly sunny
Relative humidity: 95%, pressure: 754 mm Precipitations: 0.0 mm Wind: 4 km/h, northwest |
05:00 |
+15° feels like: +15° |
A mix of sun and cloud
Relative humidity: 99%, pressure: 754 mm Precipitations: 0.0 mm Wind: 0 km/h, west |
08:00 |
+14° feels like: +14° |
Overcast
Relative humidity: 100%, pressure: 754 mm Precipitations: 0.0 mm Wind: 4 km/h, southwest |
11:00 |
+22° feels like: +22° |
Mainly sunny
Relative humidity: 66%, pressure: 754 mm Precipitations: 0.0 mm Wind: 7 km/h, west |
14:00 |
+26° feels like: +26° |
Clear
Relative humidity: 53%, pressure: 753 mm Precipitations: 0.0 mm Wind: 11 km/h, west |
17:00 |
+27° feels like: +27° |
Mainly sunny
Relative humidity: 52%, pressure: 752 mm Precipitations: 0.1 mm Wind: 11 km/h, southwest |
20:00 |
+21° feels like: +21° |
Mainly sunny
Relative humidity: 77%, pressure: 753 mm Precipitations: 0.0 mm Wind: 7 km/h, southwest |
23:00 |
+18° feels like: +18° |
Mainly sunny
Relative humidity: 90%, pressure: 754 mm Precipitations: 0.0 mm Wind: 7 km/h, north |
02:00 |
+16° feels like: +16° |
Clear
Relative humidity: 96%, pressure: 754 mm Precipitations: 0.0 mm Wind: 7 km/h, north |