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Hour-by-Hour Forecast for St. Catharines, Ontario, Canada

Currently: 73 °F. Partly sunny. (Weather station: Saint Catharines Airport, Canada). See more current weather

Hour-by-hour Forecast in St. Catharines — Graph

°F
Time
Wind
(mph)
Rain/Snow
()
Temp
(°F)
68
70
72
74
76
78
80
82
84
86
88
90
92
Thursday, August 7, 2025
10 pm
74
6
11 pm
73
9
Friday, August 8, 2025
12 am
73
9
1 am
71
9
2 am
71
9
3 am
71
9
4 am
70
9
5 am
70
9
6 am
70
9
7 am
71
10
8 am
74
10
9 am
77
10
10 am
79
11
11 am
81
11
12 pm
83
10
1 pm
84
10
2 pm
85
10
3 pm
86
8
4 pm
86
5
5 pm
86
4
6 pm
85
4
7 pm
83
4
8 pm
80
4
9 pm
78
6
10 pm
74
7
11 pm
73
9
Saturday, August 9, 2025
12 am
73
9
1 am
73
10
2 am
74
11
3 am
73
11
4 am
72
10
5 am
71
10
6 am
71
11
7 am
72
11
8 am
74
11
9 am
78
12
10 am
80
12
11 am
83
13
12 pm
85
13
1 pm
86
12
2 pm
87
12
3 pm
88
12
4 pm
89
13
5 pm
88
13
6 pm
87
12
7 pm
85
11
8 pm
82
11
9 pm
79
10
10 pm
75
10
11 pm
74
9
Sunday, August 10, 2025
12 am
74
9
1 am
74
8
2 am
73
8
3 am
73
9
4 am
73
10
5 am
73
11
6 am
72
12
7 am
73
13
8 am
76
14
9 am
79
13
10 am
83
12
11 am
85
10
12 pm
87
12
1 pm
89
13
2 pm
89
14
3 pm
90
16
4 pm
90
17
5 pm
90
19
6 pm
89
17
7 pm
86
16
8 pm
83
15
9 pm
80
13
10 pm
76
12
11 pm
75
11
Monday, August 11, 2025
12 am
74
10
1 am
73
10
2 am
73
9
3 am
73
9
4 am
73
10
5 am
73
10
6 am
73
11
7 am
74
11
8 am
77
12
9 am
81
11
10 am
84
10
11 am
87
9
12 pm
88
11
1 pm
89
13
2 pm
90
16
3 pm
91
17
4 pm
91
19
5 pm
91
20
6 pm
90
19
7 pm
88
17
8 pm
84
16
9 pm
81
14
10 pm
79
13
11 pm
78
11
Tuesday, August 12, 2025
12 am
76
9
1 am
75
7
2 am
74
5
3 am
74
6
4 am
74
7
5 am
74
8
6 am
74
8
7 am
75
8
8 am
78
9
9 am
80
8
10 am
83
8
11 am
84
8
12 pm
85
7
1 pm
85
7
2 pm
84
6
3 pm
85
8
4 pm
86
10
5 pm
87
13
6 pm
85
12
7 pm
82
11
8 pm
80
10
9 pm
78
9
10 pm
76
9
11 pm
77
9
Wednesday, August 13, 2025
12 am
76
7
1 am
74
6
2 am
74
5
3 am
73
5
4 am
73
5
5 am
72
6
6 am
72
6
7 am
74
6
8 am
76
6
9 am
79
6
10 am
83
6
11 am
86
6
12 pm
87
6
1 pm
88
6
2 pm
90
5
3 pm
91
8
4 pm
91
11
5 pm
91
14
6 pm
90
13
7 pm
88
13
8 pm
85
12
9 pm
83
12
10 pm
80
11
11 pm
78
10
Thursday, August 14, 2025
12 am
77
10
1 am
76
9
2 am
76
9
3 am
76
9
4 am
75
9
5 am
74
9
6 am
75
9
7 am
76
10
8 am
79
11
9 am
82
11
10 am
85
10
11 am
87
10
12 pm
87
10
1 pm
87
9
Thu, Aug 7 at 10:00 pm
74 °F
Partly cloudy.
Feels Like: 75 °F
Humidity: 72%
Precipitation: Rain: 0 Snow: 0
Precipitation Chance: 3%
SSE
Wind: 6 mph

Detailed Hourly Forecast — Next 24 hours

Scroll right to see more
 ConditionsComfortPrecipitation
Time TempWeatherFeels LikeWind HumidityChanceAmount
10:00 pm
Thu, Aug 7
74 °FPartly cloudy.75 °F6 mph72%3%0.00" (snow)
0.00" (rain)
11:00 pm73 °FPartly cloudy.75 °F9 mph73%0%0.00" (snow)
0.00" (rain)
12:00 am
Fri, Aug 8
73 °FPartly cloudy.74 °F9 mph74%0%0.00" (snow)
0.00" (rain)
1:00 am71 °FScattered clouds.73 °F9 mph76%0%0.00" (snow)
0.00" (rain)
2:00 am71 °FMostly clear.73 °F9 mph76%0%0.00" (snow)
0.00" (rain)
3:00 am71 °FClear.73 °F9 mph76%0%0.00" (snow)
0.00" (rain)
4:00 am70 °FClear.72 °F9 mph78%0%0.00" (snow)
0.00" (rain)
5:00 am70 °FClear.70 °F9 mph79%0%0.00" (snow)
0.00" (rain)
6:00 am70 °FScattered clouds.70 °F9 mph79%0%0.00" (snow)
0.00" (rain)
7:00 am71 °FBroken clouds.72 °F10 mph77%0%0.00" (snow)
0.00" (rain)
8:00 am74 °FOvercast.76 °F10 mph71%0%0.00" (snow)
0.00" (rain)
9:00 am77 °FCloudy.78 °F10 mph65%0%0.00" (snow)
0.00" (rain)
10:00 am79 °FBroken clouds.81 °F11 mph60%0%0.00" (snow)
0.00" (rain)
11:00 am81 °FPartly cloudy.83 °F11 mph57%0%0.00" (snow)
0.00" (rain)
12:00 pm83 °FPartly cloudy.84 °F10 mph54%0%0.00" (snow)
0.00" (rain)
1:00 pm84 °FPartly cloudy.85 °F10 mph52%0%0.00" (snow)
0.00" (rain)
2:00 pm85 °FPartly cloudy.86 °F10 mph51%0%0.00" (snow)
0.00" (rain)
3:00 pm86 °FPartly cloudy.87 °F8 mph49%0%0.00" (snow)
0.00" (rain)
4:00 pm86 °FPartly cloudy.87 °F5 mph47%0%0.00" (snow)
0.00" (rain)
5:00 pm86 °FPartly cloudy.87 °F4 mph47%0%0.00" (snow)
0.00" (rain)
6:00 pm85 °FPartly cloudy.86 °F4 mph48%0%0.00" (snow)
0.00" (rain)
7:00 pm83 °FPartly cloudy.85 °F4 mph53%0%0.00" (snow)
0.00" (rain)
8:00 pm80 °FPartly cloudy.82 °F4 mph60%0%0.00" (snow)
0.00" (rain)
9:00 pm78 °FScattered clouds.80 °F6 mph66%0%0.00" (snow)
0.00" (rain)
* Updated Thursday, August 7, 2025 3:42:33 pm St. Catharines time - Weather by CustomWeather, © 2025

14 days extended forecast