Weather for the next 7 days in St. Catharines, an urban area in Ontario, Canada.

Weather in St. Catharines for today, Monday, 07 Sep 2026

Sunrise: 06:47
Sunset: 19:41
Moonrise: 02:15
Moonset: 18:00
UV Index: 6
02:0005:0008:0011:0014:0017:0020:0023:00
Partly Cloudy Clear Partly Cloudy SunnySunnySunnyClear Clear
Temperature16°C14°C15°C22°C20°C22°C22°C20°C
Feels Like16°C14°C16°C22°C20°C22°C22°C20°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability10 %7 %11 %6 %4 %3 %5 %7 %
Cloud Cover28 %4 %37 %12 %5 %5 %8 %21 %
Wind Speed6 km/h10 km/h9 km/h7 km/h1 km/h5 km/h4 km/h10 km/h
Wind DirectionSSESSWWSWWNWNNESESSSW
Wind Gusts7 km/h10 km/h10 km/h7 km/h3 km/h7 km/h4 km/h10 km/h
Humidity76 %72 %76 %69 %61 %57 %65 %70 %
Dew Point12°C9°C11°C16°C12°C13°C15°C15°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for tomorrow, Tuesday, 08 Sep 2026

Sunrise: 06:49
Sunset: 19:39
Moonrise: 03:35
Moonset: 18:30
UV Index: 5
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Clear Cloudy Overcast Overcast Overcast Overcast Overcast
Temperature19°C18°C18°C20°C21°C21°C21°C22°C
Feels Like19°C18°C18°C20°C21°C21°C21°C22°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability18 %6 %16 %16 %15 %18 %21 %17 %
Cloud Cover99 %5 %85 %100 %100 %100 %100 %100 %
Wind Speed9 km/h9 km/h6 km/h2 km/h9 km/h14 km/h12 km/h6 km/h
Wind DirectionSWSSWSWSSWNNEENEESES
Wind Gusts9 km/h27 km/h6 km/h4 km/h10 km/h16 km/h13 km/h6 km/h
Humidity70 %71 %72 %64 %62 %69 %76 %67 %
Dew Point14°C13°C13°C13°C13°C15°C17°C15°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for Wednesday, 09 Sep 2026

Sunrise: 06:50
Sunset: 19:38
Moonrise: 04:54
Moonset: 18:56
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Overcast Overcast Light rainLight rainLight rain showerLight rain showerOvercast
Temperature22°C22°C22°C20°C20°C22°C21°C21°C
Feels Like22°C25°C25°C20°C20°C22°C21°C21°C
Precipitation0 mm0 mm0 mm1.7 mm1.4 mm0.2 mm0.8 mm0 mm
Probability21 %21 %19 %78 %77 %46 %69 %30 %
Cloud Cover100 %100 %96 %100 %100 %100 %100 %100 %
Wind Speed7 km/h22 km/h27 km/h27 km/h27 km/h24 km/h34 km/h24 km/h
Wind DirectionSSWSSWSSWSWSWSWWSWWSW
Wind Gusts14 km/h37 km/h43 km/h42 km/h50 km/h43 km/h59 km/h43 km/h
Humidity75 %76 %74 %91 %91 %88 %89 %91 %
Dew Point17°C18°C18°C18°C19°C20°C19°C19°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for Thursday, 10 Sep 2026

Sunrise: 06:51
Sunset: 19:36
Moonrise: 06:10
Moonset: 19:18
UV Index: 5
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Overcast Overcast Patchy rain nearbyOvercast Overcast Overcast Overcast
Temperature20°C20°C20°C22°C24°C23°C21°C19°C
Feels Like20°C20°C20°C22°C25°C25°C21°C19°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability29 %31 %29 %26 %16 %16 %19 %20 %
Cloud Cover95 %100 %100 %100 %100 %100 %100 %100 %
Wind Speed25 km/h22 km/h24 km/h24 km/h22 km/h21 km/h19 km/h20 km/h
Wind DirectionSWSWSWWSWWNWWWNWNNW
Wind Gusts38 km/h35 km/h39 km/h35 km/h33 km/h34 km/h30 km/h24 km/h
Humidity91 %92 %89 %81 %66 %65 %72 %74 %
Dew Point19°C18°C18°C18°C17°C16°C15°C14°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for Friday, 11 Sep 2026

Sunrise: 06:52
Sunset: 19:34
Moonrise: 07:23
Moonset: 19:39
UV Index: 6
02:0005:0008:0011:0014:0017:0020:0023:00
Clear Clear SunnySunnySunnySunnyCloudy Clear
Temperature17°C16°C16°C17°C19°C21°C19°C19°C
Feels Like17°C16°C16°C17°C19°C21°C19°C19°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability5 %7 %7 %5 %3 %3 %18 %8 %
Cloud Cover0 %5 %2 %0 %5 %5 %81 %5 %
Wind Speed15 km/h13 km/h10 km/h6 km/h5 km/h5 km/h20 km/h16 km/h
Wind DirectionNWWNWWNWWNNESSESSWS
Wind Gusts20 km/h16 km/h11 km/h7 km/h7 km/h8 km/h28 km/h26 km/h
Humidity69 %73 %73 %66 %57 %57 %76 %77 %
Dew Point11°C11°C11°C10°C10°C12°C15°C15°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for Saturday, 12 Sep 2026

Sunrise: 06:53
Sunset: 19:32
Moonrise: 08:34
Moonset: 19:59
UV Index: 7
02:0005:0008:0011:0014:0017:0020:0023:00
Cloudy Partly Cloudy SunnySunnyPartly Cloudy SunnyClear Clear
Temperature19°C19°C19°C23°C25°C26°C24°C22°C
Feels Like19°C19°C19°C25°C26°C27°C26°C25°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability17 %17 %9 %5 %6 %5 %8 %8 %
Cloud Cover72 %59 %0 %0 %34 %14 %19 %5 %
Wind Speed16 km/h14 km/h15 km/h19 km/h24 km/h20 km/h14 km/h15 km/h
Wind DirectionSSWSSSWSWSWSWSSSE
Wind Gusts31 km/h28 km/h29 km/h25 km/h31 km/h24 km/h15 km/h21 km/h
Humidity79 %83 %80 %69 %62 %64 %74 %76 %
Dew Point15°C16°C15°C16°C17°C18°C19°C18°C
000102030405060708091011121314151617181920212223

Weather in St. Catharines for Sunday, 13 Sep 2026

Sunrise: 06:54
Sunset: 19:30
Moonrise: 09:44
Moonset: 20:20
UV Index: 7
02:0005:0008:0011:0014:0017:0020:0023:00
Cloudy Overcast Partly Cloudy Overcast Cloudy SunnyClear Patchy rain nearby
Temperature23°C22°C22°C25°C27°C28°C26°C26°C
Feels Like25°C22°C22°C26°C28°C31°C28°C28°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0.3 mm
Probability16 %22 %13 %19 %13 %5 %7 %32 %
Cloud Cover77 %100 %32 %94 %78 %16 %0 %89 %
Wind Speed22 km/h21 km/h21 km/h25 km/h27 km/h22 km/h21 km/h28 km/h
Wind DirectionSSSSSWSSWSSWSSWSSW
Wind Gusts36 km/h37 km/h36 km/h32 km/h35 km/h29 km/h30 km/h46 km/h
Humidity76 %78 %82 %74 %68 %66 %75 %72 %
Dew Point18°C18°C19°C20°C20°C21°C21°C20°C
000102030405060708091011121314151617181920212223

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