17.07
fri
fri
Day
66°F
N 2 mph
Precip.
84%
84%
Night
61°F
NE 7 mph
Precip.
48%
48%
18.07
sat
sat
Day
73°F
S 12 mph
Precip.
3%
3%
Night
61°F
S 4 mph
Precip.
8%
8%
19.07
sun
sun
Day
66°F
N 5 mph
Precip.
5%
5%
Night
63°F
NE 6 mph
Precip.
8%
8%
20.07
mon
mon
Day
72°F
SE 17 mph
Precip.
16%
16%
Night
73°F
SE 15 mph
Precip.
2%
2%
21.07
tue
tue
Day
52°F
S 17 mph
Precip.
22%
22%
Night
59°F
E 2 mph
Precip.
6%
6%
22.07
wed
wed
Day
72°F
NE 8 mph
Precip.
2%
2%
Night
61°F
E 6 mph
Precip.
16%
16%
23.07
thu
thu
Day
73°F
NE 4 mph
Precip.
5%
5%
Night
57°F
NW 2 mph
Precip.
27%
27%
24.07
fri
fri
Day
66°F
NW 4 mph
Precip.
26%
26%
Night
57°F
E 2 mph
Precip.
43%
43%
25.07
sat
sat
Day
68°F
NW 5 mph
Precip.
16%
16%
Night
54°F
N 2 mph
Precip.
16%
16%
26.07
sun
sun
Day
72°F
N 6 mph
Precip.
14%
14%
Night
57°F
NW 7 mph
Precip.
41%
41%
27.07
mon
mon
Day
64°F
W 6 mph
Precip.
17%
17%
Night
59°F
W 5 mph
Precip.
77%
77%
28.07
tue
tue
Day
72°F
E 6 mph
Precip.
21%
21%
Night
54°F
W 5 mph
Precip.
43%
43%
29.07
wed
wed
Day
61°F
NW 6 mph
Precip.
18%
18%
Night
64°F
E 9 mph
Precip.
8%
8%
30.07
thu
thu
Day
70°F
E 16 mph
Precip.
4%
4%
Night
70°F
SE 7 mph
Precip.
3%
3%
sea water
temperature
temperature
| Thunder Bay |
monthly
weather
weather
| Thunder Bay |
current
weather
weather
| Thunder Bay |
7 days
forecast
forecast
| Thunder Bay |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 47.8°F. The highest and lowest sea temperatures during the month were 50.5°F and 44.8°F.
Air temperature in Thunder Bay, °F
Precipitation total in Thunder Bay, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Thunder Bay
Thunder Bay on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Thunder Bay
Local time: 07:27
July 17, friday
0900
66°F
NE
1 mph
1 mph
1200
66°F
N
2 mph
2 mph
1500
73°F
N
4 mph
4 mph
1800
81°F
N
6 mph
6 mph
2100
59°F
N
4 mph
4 mph
July 18, saturday
0000
61°F
NE
7 mph
7 mph
0300
59°F
N
1 mph
1 mph
0600
61°F
SE
6 mph
6 mph
