Thunder Bay (Canada) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 8° Celsius; Minimum nighttime temperature: 4° Celsius;
Maximum daytime temperature: 8 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius; -
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius; -
Maximum daytime temperature: 8° Celsius; Minimum nighttime temperature: 0° Celsius;
Maximum daytime temperature: 8 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius; -
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 0° Celsius;
Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius;
-
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 0° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius; -
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius;
-
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius;
Cloudy changing to heavy rain in the afternoon.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Thunder Bay
Today (27 April 2026)
| Time |
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%
|
10%
|
20%
|
40%
|
50%
|
70%
|
90%
|
≥95%
|
≥95%
|
≥95%
|
≥95%
|
≥95%
|
90%
|
80%
|
| Temperature |
4°
|
4°
|
4°
|
5°
|
5°
|
5°
|
5°
|
6°
|
6°
|
7°
|
8°
|
7°
|
7°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
| Feels like temperature (°C) |
2°
|
2°
|
1°
|
2°
|
2°
|
2°
|
2°
|
3°
|
3°
|
4°
|
5°
|
4°
|
3°
|
3°
|
3°
|
2°
|
3°
|
3°
|
3°
|
3°
|
3°
|
| Wind direction and speed |
ENE
5
|
ENE
6
|
E
7
|
E
8
|
E
9
|
E
9
|
E
10
|
E
10
|
E
10
|
E
11
|
ESE
11
|
E
12
|
E
12
|
E
12
|
E
11
|
E
10
|
E
10
|
E
9
|
E
9
|
ENE
7
|
ENE
7
|
| Wind gust (mph) |
11
|
13
|
15
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
24
|
24
|
23
|
22
|
21
|
19
|
18
|
16
|
14
|
12
|
| Visibility |
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
M
|
M
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
| Humidity |
93%
|
93%
|
91%
|
87%
|
84%
|
80%
|
75%
|
73%
|
74%
|
72%
|
68%
|
74%
|
75%
|
83%
|
88%
|
92%
|
93%
|
94%
|
96%
|
96%
|
96%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 3 | 3 | 2 | 2 | 1 | 2 | 1 | 1 | - | - | - | - | - |
Tuesday (28 April 2026)
| 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 |
60%
|
50%
|
50%
|
40%
|
50%
|
40%
|
30%
|
30%
|
20%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
6°
|
6°
|
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
4°
|
4°
|
5°
|
5°
|
6°
|
7°
|
8°
|
8°
|
8°
|
8°
|
9°
|
8°
|
7°
|
7°
|
6°
|
6°
|
| Feels like temperature (°C) |
4°
|
4°
|
3°
|
3°
|
2°
|
1°
|
1°
|
0°
|
0°
|
-1°
|
0°
|
0°
|
2°
|
3°
|
4°
|
5°
|
5°
|
5°
|
6°
|
5°
|
5°
|
4°
|
4°
|
3°
|
| Wind direction and speed (mph) |
NE
6
|
N
6
|
NNW
7
|
NW
9
|
NW
10
|
NW
13
|
NW
14
|
NW
15
|
NW
16
|
NW
17
|
NW
17
|
NW
17
|
NW
17
|
NW
16
|
NW
15
|
NW
15
|
NW
14
|
NW
13
|
NW
12
|
NW
10
|
NW
9
|
NW
8
|
NW
6
|
WNW
6
|
| Wind gust (mph) |
12
|
15
|
18
|
22
|
25
|
28
|
30
|
32
|
33
|
33
|
33
|
34
|
34
|
33
|
31
|
30
|
30
|
28
|
24
|
21
|
18
|
14
|
12
|
11
|
| Visibility (description) |
P
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
95%
|
95%
|
93%
|
92%
|
91%
|
89%
|
87%
|
85%
|
82%
|
79%
|
76%
|
74%
|
67%
|
61%
|
57%
|
54%
|
52%
|
52%
|
50%
|
46%
|
46%
|
52%
|
56%
|
57%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 5 | 4 | 3 | 3 | 2 | 1 | 1 | - | - | - | - |
Wednesday (29 April 2026)
| 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%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
5°
|
5°
|
4°
|
4°
|
3°
|
3°
|
2°
|
2°
|
2°
|
4°
|
5°
|
6°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
6°
|
5°
|
4°
|
| Feels like temperature (°C) |
3°
|
2°
|
2°
|
1°
|
1°
|
1°
|
0°
|
0°
|
1°
|
2°
|
4°
|
4°
|
5°
|
5°
|
5°
|
6°
|
6°
|
6°
|
6°
|
5°
|
5°
|
4°
|
3°
|
2°
|
| Wind direction and speed (mph) |
WNW
6
|
WNW
6
|
NW
5
|
NW
5
|
NW
5
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
5
|
NW
6
|
WNW
6
|
WNW
7
|
WNW
7
|
WNW
7
|
WNW
7
|
WNW
6
|
NW
7
|
NW
7
|
NNW
6
|
N
5
|
NNE
5
|
NNE
5
|
| Wind gust (mph) |
10
|
10
|
10
|
9
|
9
|
8
|
7
|
7
|
9
|
12
|
14
|
16
|
17
|
17
|
17
|
17
|
16
|
16
|
15
|
14
|
12
|
10
|
10
|
9
|
| 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 |
61%
|
63%
|
64%
|
64%
|
67%
|
68%
|
70%
|
71%
|
66%
|
57%
|
48%
|
46%
|
42%
|
41%
|
42%
|
41%
|
41%
|
42%
|
41%
|
43%
|
46%
|
53%
|
59%
|
62%
|
| UV | - | - | - | - | - | - | - | - | 1 | 2 | 2 | 4 | 4 | 3 | 4 | 2 | 2 | 2 | 1 | 1 | - | - | - | - |
Thursday (30 April 2026)
| 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%
|
10%
|
<5%
|
10%
|
<5%
|
<5%
|
| Temperature (°C) |
3°
|
2°
|
2°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
3°
|
5°
|
6°
|
7°
|
8°
|
8°
|
9°
|
9°
|
8°
|
8°
|
8°
|
7°
|
6°
|
5°
|
4°
|
| Feels like temperature (°C) |
1°
|
1°
|
0°
|
-1°
|
-1°
|
-1°
|
-2°
|
-2°
|
-1°
|
1°
|
2°
|
4°
|
4°
|
6°
|
6°
|
7°
|
8°
|
7°
|
7°
|
7°
|
5°
|
5°
|
4°
|
3°
|
| Wind direction and speed (mph) |
N
5
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
5
|
NNW
6
|
NNW
6
|
NNW
7
|
NNW
6
|
NNW
7
|
NNW
7
|
NNW
6
|
N
5
|
NNE
5
|
ENE
4
|
ESE
5
|
ESE
4
|
ENE
4
|
N
4
|
| Wind gust (mph) |
8
|
7
|
7
|
7
|
7
|
8
|
8
|
9
|
11
|
13
|
16
|
18
|
17
|
18
|
17
|
17
|
16
|
13
|
11
|
11
|
10
|
8
|
7
|
6
|
| 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 |
66%
|
67%
|
68%
|
64%
|
67%
|
65%
|
66%
|
65%
|
59%
|
54%
|
42%
|
40%
|
38%
|
39%
|
38%
|
36%
|
36%
|
39%
|
38%
|
41%
|
46%
|
55%
|
58%
|
58%
|
| UV | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 4 | 5 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | - | - | - | - |
Friday (1 May 2026)
| 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
|
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%
|
| Temperature (°C) |
4°
|
3°
|
2°
|
2°
|
1°
|
1°
|
0°
|
0°
|
1°
|
3°
|
5°
|
7°
|
8°
|
8°
|
9°
|
10°
|
10°
|
10°
|
10°
|
9°
|
8°
|
4°
|
| Feels like temperature (°C) |
2°
|
1°
|
0°
|
0°
|
-1°
|
-1°
|
-2°
|
-2°
|
-1°
|
2°
|
3°
|
5°
|
6°
|
7°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
6°
|
3°
|
| Wind direction and speed (mph) |
NNW
3
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NW
4
|
NNW
4
|
NNW
4
|
NNW
4
|
NNW
4
|
NNW
5
|
N
7
|
N
7
|
N
7
|
N
7
|
N
7
|
NNE
7
|
NNE
7
|
NNE
7
|
NE
6
|
ENE
6
|
NNW
3
|
| Wind gust (mph) |
6
|
6
|
6
|
7
|
7
|
7
|
7
|
7
|
9
|
13
|
16
|
18
|
19
|
20
|
19
|
19
|
18
|
17
|
16
|
14
|
11
|
7
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
65%
|
66%
|
69%
|
68%
|
68%
|
69%
|
67%
|
68%
|
58%
|
46%
|
40%
|
36%
|
34%
|
32%
|
30%
|
29%
|
29%
|
32%
|
35%
|
38%
|
45%
|
67%
|
| UV | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 | - | - |
Saturday (2 May 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
2°
|
1°
|
2°
|
7°
|
11°
|
11°
|
8°
|
5°
|
| Feels like temperature (°C) |
1°
|
-1°
|
0°
|
5°
|
9°
|
10°
|
7°
|
4°
|
| Wind direction and speed (mph) |
NW
4
|
NW
4
|
NW
4
|
NNW
6
|
NNW
7
|
NNW
8
|
NE
6
|
E
3
|
| Wind gust (mph) |
7
|
7
|
14
|
19
|
20
|
19
|
12
|
7
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
71%
|
67%
|
59%
|
35%
|
29%
|
35%
|
43%
|
70%
|
| UV | - | - | 1 | 4 | 6 | 2 | - | - |
Sunday (3 May 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
20%
|
10%
|
20%
|
20%
|
20%
|
10%
|
10%
|
| Temperature (°C) |
3°
|
3°
|
3°
|
7°
|
10°
|
10°
|
9°
|
6°
|
| Feels like temperature (°C) |
2°
|
1°
|
1°
|
5°
|
9°
|
8°
|
7°
|
4°
|
| Wind direction and speed (mph) |
NNW
3
|
NW
4
|
NNW
4
|
NNW
6
|
WNW
7
|
N
6
|
E
6
|
NE
5
|
| Wind gust (mph) |
8
|
9
|
14
|
17
|
19
|
19
|
13
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
80%
|
78%
|
58%
|
53%
|
47%
|
57%
|
75%
|
| UV | - | - | 1 | 3 | 4 | 3 | - | - |
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Forecast
Forecast for 4am (UTC-4) Monday
Updated 01:19 (UTC+1) on Mon 27 Apr 2026
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