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

Weather in Sarnia for today, Tuesday, 29 Sep 2026

Sunrise: 07:20
Sunset: 19:10
Moonrise: 20:23
Moonset: 10:55
UV Index: 5
02:0005:0008:0011:0014:0017:0020:0023:00
Clear Clear SunnySunnySunnySunnyOvercast Overcast
Temperature13°C13°C13°C19°C23°C22°C16°C15°C
Feels Like13°C12°C13°C19°C25°C22°C16°C14°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability13 %15 %15 %3 %1 %1 %19 %20 %
Cloud Cover0 %0 %0 %0 %0 %5 %100 %100 %
Wind Speed9 km/h7 km/h5 km/h5 km/h12 km/h19 km/h12 km/h10 km/h
Wind DirectionEENEESSWSSS
Wind Gusts9 km/h7 km/h5 km/h15 km/h26 km/h37 km/h16 km/h11 km/h
Humidity90 %93 %93 %59 %40 %44 %72 %73 %
Dew Point12°C12°C12°C11°C9°C9°C11°C10°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for tomorrow, Wednesday, 30 Sep 2026

Sunrise: 07:22
Sunset: 19:08
Moonrise: 21:04
Moonset: 12:13
UV Index: 3
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Cloudy MistOvercast Overcast Overcast Cloudy Cloudy
Temperature14°C15°C16°C20°C21°C22°C19°C20°C
Feels Like13°C14°C16°C20°C21°C24°C19°C20°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability25 %27 %34 %14 %13 %11 %14 %13 %
Cloud Cover100 %85 %84 %100 %100 %100 %76 %79 %
Wind Speed10 km/h10 km/h10 km/h21 km/h23 km/h21 km/h13 km/h18 km/h
Wind DirectionSSWSSSSWSSWSSWSSSW
Wind Gusts10 km/h10 km/h22 km/h30 km/h31 km/h29 km/h40 km/h47 km/h
Humidity83 %92 %95 %60 %53 %48 %70 %68 %
Dew Point11°C14°C15°C12°C11°C11°C14°C14°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for Thursday, 01 Oct 2026

Sunrise: 07:23
Sunset: 19:06
Moonrise: 21:57
Moonset: 13:28
UV Index: 5
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Overcast Overcast Overcast Overcast Light drizzleLight rain showerPatchy rain nearby
Temperature19°C19°C19°C20°C27°C19°C17°C13°C
Feels Like19°C19°C19°C20°C27°C19°C17°C12°C
Precipitation0 mm0 mm0 mm0 mm0 mm0.5 mm0.2 mm0.1 mm
Probability26 %19 %15 %13 %9 %66 %51 %35 %
Cloud Cover100 %100 %100 %100 %91 %100 %100 %100 %
Wind Speed17 km/h21 km/h17 km/h22 km/h38 km/h20 km/h18 km/h15 km/h
Wind DirectionSSSWSSWSSWWSWWWNWN
Wind Gusts45 km/h58 km/h54 km/h59 km/h60 km/h42 km/h34 km/h36 km/h
Humidity85 %72 %61 %55 %38 %89 %96 %82 %
Dew Point16°C14°C11°C11°C12°C17°C17°C10°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for Friday, 02 Oct 2026

Sunrise: 07:24
Sunset: 19:04
Moonrise: 23:01
Moonset: 14:33
UV Index: 2
02:0005:0008:0011:0014:0017:0020:0023:00
Overcast Overcast Overcast Overcast SunnySunnyClear Partly Cloudy
Temperature12°C11°C12°C14°C15°C16°C11°C9°C
Feels Like10°C10°C11°C13°C15°C16°C9°C7°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability20 %18 %17 %12 %1 %1 %5 %12 %
Cloud Cover100 %100 %100 %100 %1 %5 %6 %38 %
Wind Speed18 km/h11 km/h8 km/h16 km/h19 km/h21 km/h14 km/h13 km/h
Wind DirectionNNNWNNWNNWNNWNNWNNWNNE
Wind Gusts42 km/h34 km/h27 km/h21 km/h21 km/h39 km/h31 km/h25 km/h
Humidity73 %69 %65 %50 %40 %35 %67 %78 %
Dew Point7°C6°C5°C4°C2°C1°C5°C5°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for Saturday, 03 Oct 2026

Sunrise: 07:25
Sunset: 19:03
Moonrise: 19:00
Moonset: 15:26
UV Index: 4
02:0005:0008:0011:0014:0017:0020:0023:00
Clear Clear SunnyOvercast Overcast Overcast Overcast Overcast
Temperature8°C7°C7°C14°C18°C18°C13°C13°C
Feels Like5°C5°C5°C13°C18°C18°C11°C11°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability11 %10 %9 %10 %9 %9 %15 %18 %
Cloud Cover2 %0 %0 %100 %99 %100 %100 %100 %
Wind Speed12 km/h12 km/h12 km/h18 km/h20 km/h22 km/h20 km/h19 km/h
Wind DirectionNENEENEEESEESEENEE
Wind Gusts23 km/h21 km/h22 km/h23 km/h22 km/h27 km/h42 km/h42 km/h
Humidity84 %82 %79 %42 %27 %29 %62 %69 %
Dew Point5°C4°C4°C2°C-1°C-1°C6°C7°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for Sunday, 04 Oct 2026

Sunrise: 07:26
Sunset: 19:01
Moonrise: 00:14
Moonset: 16:08
UV Index: 5
02:0005:0008:0011:0014:0017:0020:0023:00
Partly Cloudy Light rain showerLight rain showerLight rain showerLight rain showerOvercast Clear Clear
Temperature11°C12°C13°C13°C19°C20°C16°C13°C
Feels Like10°C11°C12°C12°C19°C20°C16°C11°C
Precipitation0 mm0.2 mm0.4 mm0.4 mm0.2 mm0 mm0 mm0 mm
Probability11 %49 %60 %53 %24 %13 %6 %5 %
Cloud Cover40 %100 %100 %86 %86 %100 %0 %0 %
Wind Speed13 km/h12 km/h11 km/h11 km/h22 km/h26 km/h21 km/h20 km/h
Wind DirectionESESWWSWWSWWWWNW
Wind Gusts29 km/h27 km/h24 km/h18 km/h30 km/h40 km/h46 km/h42 km/h
Humidity75 %96 %97 %90 %61 %54 %70 %65 %
Dew Point7°C11°C12°C11°C11°C10°C11°C7°C
000102030405060708091011121314151617181920212223

Weather in Sarnia for Monday, 05 Oct 2026

Sunrise: 07:27
Sunset: 18:59
Moonrise: 01:31
Moonset: 16:40
UV Index: 4
02:0005:0008:0011:0014:0017:0020:0023:00
Clear Clear SunnySunnySunnySunnyClear Clear
Temperature11°C10°C9°C13°C14°C13°C10°C8°C
Feels Like9°C7°C7°C10°C12°C11°C8°C6°C
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability6 %8 %7 %2 %1 %1 %5 %7 %
Cloud Cover0 %0 %0 %5 %5 %5 %3 %5 %
Wind Speed16 km/h17 km/h16 km/h31 km/h30 km/h26 km/h12 km/h11 km/h
Wind DirectionWNWWWWNWNWNWNNWNNW
Wind Gusts37 km/h39 km/h43 km/h43 km/h37 km/h35 km/h21 km/h19 km/h
Humidity70 %77 %74 %47 %41 %41 %65 %73 %
Dew Point6°C6°C5°C2°C1°C0°C3°C4°C
000102030405060708091011121314151617181920212223

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