Sarnia Weather Forecast

CURRENT CONDITIONS - September 17, 2025
23°
Low of13°
Feels like 24°CLast Updated: September 17, 2025 at 8:21 PMWeather information supplied by: OpenWeather API
POP:0%
Wind:4.15 km/h
Humidity:63%
UV:5.87
Sunrise:11:11 AM
Sunset:11:36 PM

Sarnia Weather Forecast - Hourly

Scroll horizontally for more information

23°C

8 PM

24°C

9 PM

24°C

10 PM

24°C

11 PM

22°C

12 AM

20°C

1 AM

19°C

2 AM

18°C

3 AM

17°C

4 AM

17°C

5 AM

16°C

6 AM

16°C

7 AM

15°C

8 AM

15°C

9 AM

14°C

10 AM

14°C

11 AM

16°C

12 PM

20°C

1 PM

22°C

2 PM

24°C

3 PM

24°C

4 PM

25°C

5 PM

26°C

6 PM

25°C

7 PM

23°C

8 PM

22°C

9 PM

21°C

10 PM

19°C

11 PM

18°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

17°C

8 AM

17°C

9 AM

16°C

10 AM

16°C

11 AM

16°C

12 PM

17°C

1 PM

18°C

2 PM

19°C

3 PM

19°C

4 PM

20°C

5 PM

19°C

6 PM

19°C

7 PM

Sarnia Weather Forecast - Weekly

Scroll horizontally for more information
Today
September 17
25°
13°
Tomorrow
September 18
25°
14°
Friday
September 19
20°
16°
Saturday
September 20
24°
13°
Sunday
September 21
28°
15°
Monday
September 22
25°
18°
Tuesday
September 23
29°
18°
Wednesday
September 24
24°
18°

Local News