Thunder Bay (Canada) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius; -
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: -3° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: -3 degrees Celsius; -
Maximum daytime temperature: 0° Celsius; Minimum nighttime temperature: -5° Celsius;
Maximum daytime temperature: 0 degrees Celsius; Minimum nighttime temperature: -5 degrees Celsius; -
Maximum daytime temperature: 3° Celsius; Minimum nighttime temperature: -6° Celsius;
Maximum daytime temperature: 3 degrees Celsius; Minimum nighttime temperature: -6 degrees Celsius; -
Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 1° Celsius;
Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 1 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: 1° Celsius;
Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius;
Sunny changing to partly cloudy by nighttime.
Sunrise:
Sunset:
H UV
No pollution data.
No pollen data.
7 day forecast for Thunder Bay
Today (16 April 2026)
| Time |
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%
|
| Temperature |
14°
|
14°
|
13°
|
11°
|
8°
|
6°
|
4°
|
3°
|
| Feels like temperature (°C) |
14°
|
14°
|
12°
|
10°
|
7°
|
4°
|
2°
|
1°
|
| Wind direction and speed |
SE
3
|
SE
4
|
SE
5
|
ESE
5
|
ESE
4
|
E
5
|
E
5
|
E
5
|
| Wind gust (mph) |
10
|
10
|
10
|
8
|
8
|
8
|
9
|
10
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
| Humidity |
71%
|
75%
|
75%
|
84%
|
85%
|
88%
|
89%
|
92%
|
| UV | 4 | 2 | 1 | 1 | - | - | - | - |
Friday (17 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%
|
10%
|
30%
|
50%
|
60%
|
70%
|
70%
|
40%
|
20%
|
30%
|
20%
|
20%
|
20%
|
10%
|
10%
|
20%
|
30%
|
60%
|
90%
|
90%
|
90%
|
60%
|
30%
|
20%
|
| Temperature (°C) |
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
4°
|
5°
|
6°
|
6°
|
8°
|
9°
|
10°
|
9°
|
8°
|
8°
|
7°
|
7°
|
6°
|
5°
|
| Feels like temperature (°C) |
0°
|
0°
|
0°
|
-1°
|
0°
|
-1°
|
-1°
|
-1°
|
-1°
|
0°
|
0°
|
2°
|
3°
|
4°
|
6°
|
7°
|
8°
|
7°
|
6°
|
6°
|
5°
|
5°
|
2°
|
0°
|
| Wind direction and speed (mph) |
E
6
|
E
6
|
E
6
|
E
8
|
E
8
|
E
9
|
E
10
|
E
10
|
E
10
|
E
9
|
E
9
|
E
9
|
E
9
|
E
9
|
ESE
9
|
ESE
8
|
ESE
8
|
E
7
|
ENE
6
|
NE
6
|
NNW
5
|
WNW
7
|
WNW
12
|
WNW
14
|
| Wind gust (mph) |
10
|
11
|
12
|
15
|
16
|
18
|
19
|
19
|
18
|
17
|
19
|
19
|
19
|
19
|
18
|
17
|
15
|
13
|
12
|
11
|
13
|
25
|
29
|
31
|
| Visibility (description) |
G
|
VP
|
M
|
G
|
G
|
G
|
M
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
G
|
G
|
P
|
P
|
VP
|
P
|
M
|
| Humidity |
94%
|
95%
|
95%
|
94%
|
95%
|
96%
|
96%
|
97%
|
97%
|
95%
|
94%
|
92%
|
91%
|
87%
|
82%
|
79%
|
81%
|
86%
|
90%
|
96%
|
99%
|
99%
|
97%
|
92%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Saturday (18 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 |
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
3°
|
2°
|
1°
|
0°
|
0°
|
-1°
|
-2°
|
-2°
|
-3°
|
-3°
|
-3°
|
-3°
|
-2°
|
-1°
|
-1°
|
-1°
|
-1°
|
0°
|
-1°
|
-1°
|
-2°
|
-2°
|
-3°
|
-3°
|
| Feels like temperature (°C) |
-2°
|
-4°
|
-5°
|
-6°
|
-7°
|
-7°
|
-8°
|
-9°
|
-10°
|
-10°
|
-10°
|
-9°
|
-8°
|
-8°
|
-7°
|
-7°
|
-7°
|
-7°
|
-7°
|
-7°
|
-8°
|
-8°
|
-9°
|
-9°
|
| Wind direction and speed (mph) |
NW
16
|
NW
17
|
NW
17
|
NW
17
|
NW
16
|
NW
16
|
NW
15
|
WNW
15
|
WNW
16
|
WNW
15
|
WNW
15
|
WNW
15
|
WNW
16
|
WNW
16
|
WNW
16
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
17
|
NW
17
|
NW
15
|
NW
14
|
NW
13
|
NW
12
|
| Wind gust (mph) |
34
|
35
|
34
|
33
|
32
|
32
|
31
|
30
|
31
|
31
|
31
|
32
|
33
|
33
|
34
|
34
|
34
|
34
|
33
|
32
|
29
|
26
|
25
|
23
|
| Visibility (description) |
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
87%
|
82%
|
76%
|
69%
|
66%
|
65%
|
63%
|
62%
|
61%
|
58%
|
55%
|
51%
|
43%
|
41%
|
40%
|
39%
|
39%
|
38%
|
38%
|
39%
|
41%
|
42%
|
44%
|
47%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 4 | 5 | 6 | 6 | 5 | 4 | 2 | 1 | 1 | - | - | - | - |
Sunday (19 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%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
-3°
|
-3°
|
-4°
|
-4°
|
-4°
|
-5°
|
-5°
|
-5°
|
-5°
|
-5°
|
-4°
|
-2°
|
-1°
|
0°
|
1°
|
2°
|
3°
|
3°
|
3°
|
3°
|
2°
|
1°
|
-1°
|
-2°
|
| Feels like temperature (°C) |
-9°
|
-9°
|
-9°
|
-9°
|
-10°
|
-10°
|
-10°
|
-10°
|
-10°
|
-10°
|
-9°
|
-7°
|
-6°
|
-4°
|
-3°
|
-2°
|
-1°
|
0°
|
0°
|
0°
|
-1°
|
-3°
|
-3°
|
-4°
|
| Wind direction and speed (mph) |
NW
12
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
9
|
NW
8
|
NW
9
|
NW
9
|
NNW
9
|
NNW
10
|
NNW
10
|
NNW
9
|
NNW
9
|
NNW
9
|
NNW
9
|
NNW
10
|
NNW
10
|
NNW
9
|
NNW
9
|
N
8
|
N
6
|
N
5
|
NNE
4
|
| Wind gust (mph) |
22
|
21
|
20
|
19
|
17
|
17
|
17
|
18
|
20
|
21
|
21
|
21
|
21
|
21
|
22
|
23
|
22
|
21
|
21
|
19
|
14
|
11
|
9
|
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
|
VG
|
VG
|
| Humidity |
52%
|
55%
|
58%
|
59%
|
61%
|
62%
|
64%
|
64%
|
60%
|
56%
|
52%
|
43%
|
40%
|
38%
|
29%
|
22%
|
21%
|
20%
|
21%
|
21%
|
26%
|
35%
|
43%
|
46%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 2 | 1 | 1 | - | - | - | - |
Monday (20 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
|
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) |
-2°
|
-3°
|
-4°
|
-4°
|
-5°
|
-6°
|
-6°
|
-6°
|
-5°
|
-3°
|
1°
|
3°
|
4°
|
5°
|
5°
|
6°
|
6°
|
6°
|
5°
|
4°
|
4°
|
3°
|
| Feels like temperature (°C) |
-5°
|
-5°
|
-6°
|
-7°
|
-7°
|
-8°
|
-9°
|
-9°
|
-8°
|
-6°
|
-3°
|
-1°
|
0°
|
1°
|
1°
|
2°
|
2°
|
2°
|
1°
|
1°
|
0°
|
0°
|
| Wind direction and speed (mph) |
NNE
4
|
N
3
|
W
3
|
WNW
3
|
W
3
|
SW
3
|
SSW
3
|
SSW
3
|
SSW
4
|
SSW
5
|
SSW
7
|
SSW
9
|
SSW
10
|
SSW
12
|
SSW
13
|
SSW
13
|
SSW
13
|
S
12
|
S
11
|
S
10
|
S
8
|
SSW
6
|
| Wind gust (mph) |
6
|
6
|
5
|
5
|
5
|
5
|
6
|
7
|
9
|
14
|
20
|
23
|
26
|
27
|
28
|
27
|
27
|
26
|
22
|
20
|
17
|
13
|
| 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 |
52%
|
60%
|
65%
|
68%
|
75%
|
75%
|
80%
|
82%
|
77%
|
67%
|
46%
|
36%
|
32%
|
26%
|
26%
|
26%
|
31%
|
29%
|
35%
|
39%
|
44%
|
58%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 4 | 5 | 6 | 5 | 5 | 4 | 1 | 1 | 1 | - | - |
Tuesday (21 April 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) |
3°
|
2°
|
2°
|
8°
|
11°
|
12°
|
8°
|
2°
|
| Feels like temperature (°C) |
-1°
|
-1°
|
-1°
|
5°
|
9°
|
10°
|
7°
|
0°
|
| Wind direction and speed (mph) |
WSW
7
|
WNW
8
|
WNW
7
|
NW
8
|
NW
9
|
NW
8
|
NW
6
|
NW
4
|
| Wind gust (mph) |
14
|
15
|
17
|
20
|
20
|
17
|
11
|
7
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
75%
|
82%
|
84%
|
55%
|
42%
|
40%
|
64%
|
85%
|
| UV | - | - | 1 | 4 | 6 | 2 | - | - |
Wednesday (22 April 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%
|
10%
|
| Temperature (°C) |
0°
|
-1°
|
-1°
|
8°
|
10°
|
10°
|
6°
|
3°
|
| Feels like temperature (°C) |
-2°
|
-3°
|
-3°
|
7°
|
9°
|
8°
|
4°
|
1°
|
| Wind direction and speed (mph) |
NW
3
|
NNW
3
|
N
3
|
SE
3
|
SE
6
|
ESE
7
|
E
6
|
E
6
|
| Wind gust (mph) |
6
|
6
|
9
|
13
|
16
|
15
|
12
|
11
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
92%
|
90%
|
58%
|
53%
|
54%
|
75%
|
83%
|
| UV | - | - | 1 | 4 | 6 | 2 | - | - |
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Forecast for 5pm (UTC-4) Thursday
Updated 19:20 (UTC+1) on Thu 16 Apr 2026
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