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Thunder Bay, Ontario

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Thunder Bay, Ontario Weather
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January

January February March April May June July August September October November December

2026

2025 2026 2027

Daily
S
M
T
W
T
F
S
28
34°
13°
29
13°
-4°
30
8°
-6°
31
7°
-8°
1
5°
-9°
2
9°
-5°
3
14°
-1°
4
15°
-12°
5
28°
23°
6
33°
21°
7
32°
23°
8
37°
19°
9
30°
18°
10
26°
12°
11
23°
16°
12
29°
18°
13
23°
-2°
14
11°
2°
15
12°
5°
16
14°
1°
17
11°
-3°
18
9°
-6°
19
8°
-9°
20
8°
-8°
21
9°
-13°
22
7°
-11°
23
7°
-14°
24
6°
-6°
25
9°
-13°
26
7°
-14°
27
8°
1°
28
14°
0°
29
11°
-3°
30
8°
-6°
31
9°
0°

Temperature Graph

°F
40° 28° 16° 4° -8° Jan
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

Further Ahead

February 2026

March 2026

April 2026

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Weather Near Thunder Bay:

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More
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