Your local weather forecast for today
St. Catharines, ON — 3 hour detailed weather forecast
ON, Canada » St. Catharines
Forecast for today, Saturday, April 18, 2026
08:00 |
+16° feels like: +16° |
A mix of sun and cloud
Relative humidity: 72%, pressure: 747 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
11:00 |
+18° feels like: +18° |
A mix of sun and cloud
Relative humidity: 75%, pressure: 746 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
14:00 |
+19° feels like: +19° |
Showers
Relative humidity: 68%, pressure: 745 mm Precipitations: 0.4 mm Wind: 29 km/h, southwest |
17:00 |
+16° feels like: +16° |
Rain
Relative humidity: 84%, pressure: 744 mm Precipitations: 7.4 mm Wind: 22 km/h, southwest |
20:00 |
+12° feels like: +12° |
Rain
Relative humidity: 88%, pressure: 746 mm Precipitations: 4.9 mm Wind: 14 km/h, west |
23:00 |
+11° feels like: +11° |
Overcast
Relative humidity: 83%, pressure: 748 mm Precipitations: 0.0 mm Wind: 7 km/h, northwest |
02:00 |
+8° feels like: +5° |
Showers
Relative humidity: 71%, pressure: 750 mm Precipitations: 0.0 mm Wind: 14 km/h, north |
05:00 |
+6° feels like: +3° |
A mix of sun and cloud
Relative humidity: 67%, pressure: 751 mm Precipitations: 0.0 mm Wind: 14 km/h, west |
08:00 |
+7° feels like: +3° |
A mix of sun and cloud
Relative humidity: 64%, pressure: 752 mm Precipitations: 0.1 mm Wind: 18 km/h, west |
11:00 |
+8° feels like: +5° |
Light showers
Relative humidity: 56%, pressure: 753 mm Precipitations: 0.5 mm Wind: 22 km/h, west |