Sarnia Weather Forecast

CURRENT CONDITIONS - September 13, 2025
21°
Low of13°
Feels like 21°CLast Updated: September 13, 2025 at 11:29 PMWeather information supplied by: OpenWeather API
POP:0%
Wind:3.6 km/h
Humidity:66%
UV:2.82
Sunrise:11:07 AM
Sunset:11:43 PM

Sarnia Weather Forecast - Hourly

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21°C

11 PM

21°C

12 AM

21°C

1 AM

19°C

2 AM

18°C

3 AM

16°C

4 AM

15°C

5 AM

14°C

6 AM

14°C

7 AM

13°C

8 AM

13°C

9 AM

13°C

10 AM

13°C

11 AM

14°C

12 PM

18°C

1 PM

21°C

2 PM

22°C

3 PM

23°C

4 PM

23°C

5 PM

24°C

6 PM

24°C

7 PM

24°C

8 PM

23°C

9 PM

22°C

10 PM

20°C

11 PM

19°C

12 AM

18°C

1 AM

18°C

2 AM

18°C

3 AM

18°C

4 AM

18°C

5 AM

17°C

6 AM

17°C

7 AM

16°C

8 AM

16°C

9 AM

16°C

10 AM

16°C

11 AM

17°C

12 PM

19°C

1 PM

22°C

2 PM

24°C

3 PM

25°C

4 PM

26°C

5 PM

26°C

6 PM

26°C

7 PM

26°C

8 PM

25°C

9 PM

24°C

10 PM

Sarnia Weather Forecast - Weekly

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Today
September 13
23°
13°
Tomorrow
September 14
23°
13°
Monday
September 15
26°
16°
Tuesday
September 16
23°
16°
Wednesday
September 17
25°
16°
Thursday
September 18
28°
17°
Friday
September 19
25°
19°
Saturday
September 20
17°
11°

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