The long-range forecast for Sarnia indicates that current temperatures are within the expected ranges for this time of year, aligning closely with the historical average of 26 °C. This suggests typical weather patterns without significant deviations.
Select a month and click on a day for more information:
Saturday
Aug 1
27° / 17°
Sunday
Aug 2
26° / 17°
Monday
Aug 3
29° / 17°
Tuesday
Aug 4
31° / 11°
Wednesday
Aug 5
30° / 17°
Thursday
Aug 6
26° / 20°
Friday
Aug 7
28° / 19°
Saturday
Aug 8
32° / 20°
Sunday
Aug 9
29° / 21°
Monday
Aug 10
31° / 19°
Tuesday
Aug 11
22° / 17°
Wednesday
Aug 12
22° / 15°
Thursday
Aug 13
20° / 14°
Friday
Aug 14
23° / 14°
Saturday
Aug 15
26° / 16°
Sunday
Aug 16
22° / 16°
Monday
Aug 17
22° / 15°
Tuesday
Aug 18
23° / 15°
Wednesday
Aug 19
24° / 14°
Thursday
Aug 20
27° / 16°
Friday
Aug 21
22° / 16°
Saturday
Aug 22
23° / 16°
Sunday
Aug 23
25° / 16°
Monday
Aug 24
28° / 17°
Tuesday
Aug 25
23° / 16°
Wednesday
Aug 26
23° / 16°
Thursday
Aug 27
25° / 15°
Friday
Aug 28
23° / 15°
Saturday
Aug 29
24° / 15°
Sunday
Aug 30
24° / 15°
Monday
Aug 31
24° / 14°
Sarnia 30 days weather forecast
Check out our estimated 30 days weather forecast for Sarnia, this data is based on the average weather in Sarnia in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Sarnia next to the desired date.