The long-range forecast for Thunder Bay indicates that current temperatures are within the expected ranges for this time of year, aligning closely with the historical average of 22.1 °C. This suggests typical weather patterns without significant deviations.
Select a month and click on a day for more information:
Saturday
Aug 1
22° / 13°
Sunday
Aug 2
25° / 14°
Monday
Aug 3
24° / 14°
Tuesday
Aug 4
24° / 16°
Wednesday
Aug 5
22° / 11°
Thursday
Aug 6
26° / 11°
Friday
Aug 7
24° / 14°
Saturday
Aug 8
24° / 10°
Sunday
Aug 9
22° / 10°
Monday
Aug 10
19° / 12°
Tuesday
Aug 11
19° / 9°
Wednesday
Aug 12
19° / 8°
Thursday
Aug 13
22° / 10°
Friday
Aug 14
25° / 12°
Saturday
Aug 15
22° / 13°
Sunday
Aug 16
21° / 12°
Monday
Aug 17
21° / 11°
Tuesday
Aug 18
21° / 13°
Wednesday
Aug 19
23° / 14°
Thursday
Aug 20
21° / 14°
Friday
Aug 21
21° / 12°
Saturday
Aug 22
20° / 12°
Sunday
Aug 23
21° / 13°
Monday
Aug 24
21° / 13°
Tuesday
Aug 25
20° / 13°
Wednesday
Aug 26
21° / 11°
Thursday
Aug 27
19° / 11°
Friday
Aug 28
18° / 12°
Saturday
Aug 29
19° / 11°
Sunday
Aug 30
21° / 11°
Monday
Aug 31
20° / 11°
Thunder Bay 30 days weather forecast
Check out our estimated 30 days weather forecast for Thunder Bay, this data is based on the average weather in Thunder Bay in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Thunder Bay next to the desired date.