Your local weather forecast for today
St. Catharines, ON — 1 hour detailed weather forecast
ON, Canada » St. Catharines
Forecast for today, Wednesday, December 17, 2025
18:00 |
+2° feels like: +-2° |
Mainly sunny
Relative humidity: 77%, pressure: 754 mm Precipitations: 0.0 mm Wind: 14 km/h, west |
19:00 |
+1° feels like: +-3° |
Mainly sunny
Relative humidity: 77%, pressure: 755 mm Precipitations: 0.0 mm Wind: 14 km/h, west |
20:00 |
+1° feels like: +-3° |
Mainly sunny
Relative humidity: 83%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, southwest |
21:00 |
0° feels like: -4° |
Mainly sunny
Relative humidity: 86%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, southwest |
22:00 |
0° feels like: -4° |
Mainly sunny
Relative humidity: 89%, pressure: 756 mm Precipitations: 0.0 mm Wind: 7 km/h, south |
23:00 |
-1° feels like: -5° |
A mix of sun and cloud
Relative humidity: 90%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, south |
00:00 |
-1° feels like: -5° |
A mix of sun and cloud
Relative humidity: 92%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, south |
01:00 |
-1° feels like: -5° |
A mix of sun and cloud
Relative humidity: 93%, pressure: 756 mm Precipitations: 0.0 mm Wind: 11 km/h, south |
02:00 |
+1° feels like: +-4° |
Partly cloudy
Relative humidity: 91%, pressure: 755 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
03:00 |
+1° feels like: +-4° |
Partly cloudy
Relative humidity: 88%, pressure: 754 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
04:00 |
0° feels like: -4° |
Partly cloudy
Relative humidity: 86%, pressure: 753 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
05:00 |
0° feels like: -4° |
Mainly sunny
Relative humidity: 84%, pressure: 753 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
06:00 |
+1° feels like: +-3° |
Mainly sunny
Relative humidity: 85%, pressure: 753 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
07:00 |
+1° feels like: +-2° |
Mainly sunny
Relative humidity: 82%, pressure: 753 mm Precipitations: 0.0 mm Wind: 11 km/h, south |
08:00 |
+2° feels like: +-2° |
A mix of sun and cloud
Relative humidity: 80%, pressure: 752 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
09:00 |
+4° feels like: +0° |
A mix of sun and cloud
Relative humidity: 73%, pressure: 752 mm Precipitations: 0.0 mm Wind: 14 km/h, south |
10:00 |
+6° feels like: +3° |
A mix of sun and cloud
Relative humidity: 62%, pressure: 751 mm Precipitations: 0.0 mm Wind: 18 km/h, south |
11:00 |
+8° feels like: +5° |
Clear
Relative humidity: 57%, pressure: 750 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
12:00 |
+9° feels like: +5° |
Clear
Relative humidity: 58%, pressure: 749 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
13:00 |
+9° feels like: +6° |
Clear
Relative humidity: 57%, pressure: 748 mm Precipitations: 0.0 mm Wind: 25 km/h, south |
14:00 |
+10° feels like: +7° |
Clear
Relative humidity: 58%, pressure: 748 mm Precipitations: 0.0 mm Wind: 25 km/h, south |
15:00 |
+10° feels like: +6° |
Clear
Relative humidity: 59%, pressure: 747 mm Precipitations: 0.0 mm Wind: 25 km/h, south |
16:00 |
+9° feels like: +6° |
Clear
Relative humidity: 59%, pressure: 746 mm Precipitations: 0.0 mm Wind: 22 km/h, south |
17:00 |
+8° feels like: +5° |
A mix of sun and cloud
Relative humidity: 61%, pressure: 746 mm Precipitations: 0.0 mm Wind: 25 km/h, south |
18:00 |
+8° feels like: +4° |
A mix of sun and cloud
Relative humidity: 62%, pressure: 745 mm Precipitations: 0.5 mm Wind: 25 km/h, south |