Sarnia Weather Forecast

CURRENT CONDITIONS - September 2, 2025
11°
Low of11°
Feels like 11°CLast Updated: September 2, 2025 at 7:48 AMWeather information supplied by: OpenWeather API
POP:0%
Wind:4.74 km/h
Humidity:46%
UV:6.01
Sunrise:10:55 AM
Sunset:12:02 AM

Sarnia Weather Forecast - Hourly

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11°C

7 AM

12°C

8 AM

12°C

9 AM

12°C

10 AM

12°C

11 AM

14°C

12 PM

17°C

1 PM

20°C

2 PM

23°C

3 PM

24°C

4 PM

24°C

5 PM

25°C

6 PM

25°C

7 PM

26°C

8 PM

25°C

9 PM

24°C

10 PM

23°C

11 PM

22°C

12 AM

18°C

1 AM

17°C

2 AM

17°C

3 AM

16°C

4 AM

16°C

5 AM

15°C

6 AM

16°C

7 AM

17°C

8 AM

16°C

9 AM

15°C

10 AM

16°C

11 AM

17°C

12 PM

20°C

1 PM

22°C

2 PM

24°C

3 PM

25°C

4 PM

26°C

5 PM

27°C

6 PM

27°C

7 PM

27°C

8 PM

26°C

9 PM

26°C

10 PM

24°C

11 PM

22°C

12 AM

19°C

1 AM

18°C

2 AM

17°C

3 AM

16°C

4 AM

16°C

5 AM

16°C

6 AM

Sarnia Weather Forecast - Weekly

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Today
September 2
24°
11°
Tomorrow
September 3
26°
15°
Thursday
September 4
16°
13°
Friday
September 5
21°
9°
Saturday
September 6
17°
10°
Sunday
September 7
19°
11°
Monday
September 8
21°
11°
Tuesday
September 9
18°
13°

Local News

BlackburnNews.com file photo.

Big changes to transit for some high school students

Students who attend Holy Names Catholic High School, Vincent Massey Secondary School, Riverside Secondary School, and St. Joseph's Catholic High School will notice big changes to Transit Windsor starting on the first day of school.