Thunder Bay International (Canada) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: -17° Celsius; Minimum nighttime temperature: -18° Celsius;
Maximum daytime temperature: -17° Celsius; Minimum nighttime temperature: -18° Celsius; -
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -11° Celsius;
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -11° Celsius; -
Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -12° Celsius;
Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -12° Celsius;
-
Maximum daytime temperature: 5° Celsius; Minimum nighttime temperature: -8° Celsius;
Maximum daytime temperature: 5° Celsius; Minimum nighttime temperature: -8° Celsius;
-
Maximum daytime temperature: 1° Celsius; Minimum nighttime temperature: -6° Celsius;
Maximum daytime temperature: 1° Celsius; Minimum nighttime temperature: -6° Celsius; -
Maximum daytime temperature: -5° Celsius; Minimum nighttime temperature: -24° Celsius;
Maximum daytime temperature: -5° Celsius; Minimum nighttime temperature: -24° Celsius; -
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -7° Celsius;
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -7° Celsius;
Partly cloudy.
Sunrise:
Sunset:
L UV
No pollution data.
No pollen data.
7 day forecast for Thunder Bay International
Today (13 December 2025)
| Time |
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
 |
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
-18°
|
-18°
|
-19°
|
-18°
|
-18°
|
| Feels like temperature (°C) |
-29°
|
-29°
|
-29°
|
-29°
|
-29°
|
| Wind direction and speed |
NW
14
|
NW
14
|
NW
15
|
NW
14
|
NW
13
|
| Wind gust (mph) |
32
|
32
|
32
|
31
|
30
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
66%
|
67%
|
68%
|
71%
|
73%
|
| UV | - | - | - | - | - |
Sunday (14 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
 |
|
 |
|
|
|
 |
|
|
|
|
 |
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
30%
|
30%
|
| Temperature (°C) |
-18°
|
-18°
|
-18°
|
-18°
|
-18°
|
-18°
|
-18°
|
-18°
|
-18°
|
-19°
|
-18°
|
-17°
|
-16°
|
-14°
|
-13°
|
-13°
|
-13°
|
-13°
|
-13°
|
-12°
|
-11°
|
-10°
|
-9°
|
-9°
|
| Feels like temperature (°C) |
-28°
|
-29°
|
-28°
|
-28°
|
-27°
|
-27°
|
-27°
|
-26°
|
-27°
|
-27°
|
-26°
|
-25°
|
-22°
|
-20°
|
-19°
|
-18°
|
-18°
|
-18°
|
-18°
|
-17°
|
-17°
|
-16°
|
-16°
|
-16°
|
| Wind direction and speed (mph) |
NW
13
|
NW
13
|
NW
12
|
NW
12
|
NW
11
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
9
|
NW
9
|
NW
8
|
WNW
7
|
WNW
6
|
W
6
|
W
6
|
WSW
5
|
WSW
5
|
WSW
5
|
WSW
5
|
SW
6
|
SW
8
|
SW
10
|
SW
10
|
| Wind gust (mph) |
29
|
28
|
27
|
25
|
25
|
24
|
22
|
21
|
22
|
20
|
20
|
18
|
17
|
15
|
14
|
12
|
11
|
11
|
11
|
12
|
15
|
20
|
22
|
24
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
74%
|
75%
|
75%
|
76%
|
76%
|
76%
|
79%
|
79%
|
80%
|
76%
|
70%
|
62%
|
56%
|
54%
|
51%
|
51%
|
54%
|
54%
|
55%
|
61%
|
72%
|
82%
|
85%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Monday (15 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
70%
|
50%
|
50%
|
40%
|
30%
|
30%
|
20%
|
20%
|
30%
|
30%
|
20%
|
20%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
-9°
|
-9°
|
-10°
|
-10°
|
-10°
|
-10°
|
-11°
|
-11°
|
-11°
|
-11°
|
-11°
|
-10°
|
-10°
|
-9°
|
-9°
|
-8°
|
-8°
|
-9°
|
-9°
|
-10°
|
-10°
|
-10°
|
-11°
|
-11°
|
| Feels like temperature (°C) |
-16°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-17°
|
-16°
|
-15°
|
-15°
|
-14°
|
-14°
|
-14°
|
-14°
|
-14°
|
-15°
|
-14°
|
-14°
|
-15°
|
| Wind direction and speed (mph) |
SSW
12
|
SSW
12
|
SW
12
|
WSW
12
|
WSW
10
|
W
10
|
W
9
|
W
8
|
W
8
|
WNW
8
|
WNW
8
|
NW
8
|
NW
8
|
NW
8
|
NW
8
|
NW
8
|
NW
8
|
NW
6
|
NW
6
|
NW
6
|
NW
5
|
NW
4
|
WNW
3
|
W
3
|
| Wind gust (mph) |
26
|
27
|
26
|
23
|
21
|
18
|
17
|
16
|
16
|
18
|
19
|
19
|
20
|
21
|
20
|
19
|
17
|
14
|
13
|
11
|
10
|
8
|
6
|
6
|
| Visibility (description) |
VG
|
P
|
P
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
83%
|
97%
|
94%
|
97%
|
90%
|
90%
|
88%
|
86%
|
85%
|
85%
|
86%
|
83%
|
82%
|
80%
|
76%
|
75%
|
79%
|
83%
|
84%
|
86%
|
88%
|
90%
|
92%
|
93%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Tuesday (16 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
-12°
|
-12°
|
-12°
|
-12°
|
-10°
|
-9°
|
-8°
|
-6°
|
-5°
|
-4°
|
-3°
|
-3°
|
-1°
|
0°
|
1°
|
2°
|
3°
|
3°
|
4°
|
4°
|
4°
|
4°
|
3°
|
2°
|
| Feels like temperature (°C) |
-15°
|
-16°
|
-16°
|
-16°
|
-15°
|
-14°
|
-13°
|
-12°
|
-11°
|
-10°
|
-10°
|
-8°
|
-7°
|
-5°
|
-3°
|
-2°
|
-1°
|
-1°
|
0°
|
0°
|
0°
|
-1°
|
-2°
|
-4°
|
| Wind direction and speed (mph) |
WSW
3
|
SW
4
|
SW
5
|
SW
5
|
SW
5
|
SSW
6
|
SSW
8
|
SSW
9
|
SSW
10
|
SSW
12
|
SSW
12
|
SW
12
|
SW
11
|
SW
10
|
SW
10
|
SW
10
|
WSW
11
|
W
12
|
W
12
|
W
13
|
WNW
16
|
WNW
17
|
WNW
18
|
WNW
17
|
| Wind gust (mph) |
7
|
9
|
9
|
10
|
12
|
15
|
18
|
22
|
25
|
26
|
25
|
25
|
23
|
22
|
21
|
22
|
23
|
25
|
28
|
33
|
37
|
39
|
40
|
39
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
95%
|
95%
|
93%
|
93%
|
93%
|
93%
|
95%
|
96%
|
93%
|
90%
|
86%
|
83%
|
81%
|
81%
|
73%
|
73%
|
74%
|
75%
|
76%
|
76%
|
76%
|
74%
|
69%
|
62%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - |
Wednesday (17 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
0°
|
-2°
|
-3°
|
-4°
|
-5°
|
-6°
|
-6°
|
-7°
|
-7°
|
-7°
|
-7°
|
-6°
|
-4°
|
-3°
|
-2°
|
-1°
|
-1°
|
-1°
|
-1°
|
0°
|
0°
|
| Feels like temperature (°C) |
-6°
|
-8°
|
-9°
|
-10°
|
-11°
|
-11°
|
-11°
|
-11°
|
-11°
|
-11°
|
-10°
|
-9°
|
-8°
|
-8°
|
-7°
|
-6°
|
-6°
|
-5°
|
-5°
|
-5°
|
-4°
|
| Wind direction and speed (mph) |
NW
17
|
NW
16
|
NW
13
|
NW
12
|
NW
10
|
NW
8
|
NW
6
|
WNW
5
|
NNW
5
|
SSW
5
|
S
4
|
SSE
5
|
SSE
7
|
S
8
|
S
10
|
SSE
9
|
SSE
9
|
SSE
8
|
SSE
8
|
SSE
9
|
SSE
8
|
| Wind gust (mph) |
37
|
34
|
29
|
26
|
22
|
17
|
13
|
11
|
10
|
10
|
12
|
15
|
19
|
21
|
22
|
21
|
19
|
17
|
19
|
20
|
22
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
59%
|
59%
|
59%
|
62%
|
64%
|
66%
|
67%
|
69%
|
72%
|
75%
|
75%
|
71%
|
72%
|
72%
|
74%
|
76%
|
84%
|
86%
|
91%
|
92%
|
91%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - |
Thursday (18 December 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
50%
|
60%
|
50%
|
40%
|
10%
|
10%
|
<5%
|
| Temperature (°C) |
1°
|
0°
|
1°
|
-5°
|
-12°
|
-15°
|
-17°
|
-19°
|
| Feels like temperature (°C) |
-4°
|
-4°
|
-3°
|
-12°
|
-22°
|
-26°
|
-28°
|
-30°
|
| Wind direction and speed (mph) |
SSE
10
|
SSE
9
|
SSW
8
|
NNW
13
|
NNW
19
|
NNW
19
|
NNW
17
|
NW
15
|
| Wind gust (mph) |
24
|
21
|
34
|
46
|
48
|
44
|
38
|
32
|
| Visibility (description) |
G
|
M
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
| Humidity |
94%
|
97%
|
96%
|
89%
|
85%
|
81%
|
80%
|
81%
|
| UV | - | - | - | 1 | 1 | 1 | - | - |
Friday (19 December 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
10%
|
10%
|
20%
|
30%
|
60%
|
60%
|
| Temperature (°C) |
-22°
|
-23°
|
-23°
|
-21°
|
-16°
|
-11°
|
-8°
|
-6°
|
| Feels like temperature (°C) |
-32°
|
-32°
|
-30°
|
-27°
|
-20°
|
-16°
|
-15°
|
-13°
|
| Wind direction and speed (mph) |
NW
12
|
NW
8
|
NW
5
|
NW
4
|
SSW
4
|
SSE
6
|
SSE
11
|
S
13
|
| Wind gust (mph) |
24
|
16
|
13
|
13
|
16
|
25
|
30
|
32
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
P
|
| Humidity |
85%
|
90%
|
92%
|
89%
|
78%
|
92%
|
100%
|
97%
|
| UV | - | - | - | 1 | 1 | 1 | - | - |
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Forecast
Forecast for 7pm (UTC-5) Saturday
Updated 18:28 (UTC) on Sat 13 Dec 2025
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