Sarnia Weather Forecast

CURRENT CONDITIONS - July 31, 2026
30°
Low of18°
Feels like 32°CLast Updated: July 31, 2026 at 9:42 PMWeather information supplied by: OpenWeather API
POP:0.63%
Wind:4.79 km/h
Humidity:58%
UV:7.73
Sunrise:10:18 AM
Sunset:12:52 AM

Sarnia Weather Forecast - Hourly

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30°C

9 PM

30°C

10 PM

29°C

11 PM

28°C

12 AM

27°C

1 AM

24°C

2 AM

23°C

3 AM

22°C

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22°C

6 AM

21°C

7 AM

21°C

8 AM

21°C

9 AM

20°C

10 AM

21°C

11 AM

22°C

12 PM

23°C

1 PM

23°C

2 PM

24°C

3 PM

25°C

4 PM

25°C

5 PM

26°C

6 PM

25°C

7 PM

24°C

8 PM

23°C

9 PM

23°C

10 PM

22°C

11 PM

22°C

12 AM

21°C

1 AM

20°C

2 AM

19°C

3 AM

19°C

4 AM

19°C

5 AM

18°C

6 AM

18°C

7 AM

18°C

8 AM

18°C

9 AM

18°C

10 AM

18°C

11 AM

19°C

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19°C

1 PM

19°C

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19°C

3 PM

19°C

4 PM

19°C

5 PM

20°C

6 PM

20°C

7 PM

22°C

8 PM

Sarnia Weather Forecast - Weekly

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Today
July 31
30°
18°
Tomorrow
August 1
25°
19°
Sunday
August 2
19°
18°
Monday
August 3
23°
19°
Tuesday
August 4
27°
19°
Wednesday
August 5
25°
20°
Thursday
August 6
29°
20°
Friday
August 7
28°
22°

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