08.19
wed
wed
DAY
70°F
NE 2 mph
precip
6%
6%
NIGHT
58°F
SW 8 mph
precip
10%
10%
08.20
thu
thu
DAY
60°F
W 6 mph
precip
15%
15%
NIGHT
58°F
N 3 mph
precip
8%
8%
08.21
fri
fri
DAY
62°F
W 5 mph
precip
6%
6%
NIGHT
60°F
SE 2 mph
precip
23%
23%
08.22
sat
sat
DAY
68°F
SE 7 mph
precip
3%
3%
NIGHT
58°F
SE 8 mph
precip
5%
5%
08.23
sun
sun
DAY
58°F
W 5 mph
precip
6%
6%
NIGHT
56°F
NE 5 mph
precip
29%
29%
08.24
mon
mon
DAY
56°F
NW 11 mph
precip
53%
53%
NIGHT
58°F
NW 4 mph
precip
83%
83%
08.25
tue
tue
DAY
58°F
S 14 mph
precip
42%
42%
NIGHT
62°F
NW 12 mph
precip
10%
10%
08.26
wed
wed
DAY
60°F
SW 12 mph
precip
2%
2%
NIGHT
58°F
SE 4 mph
precip
4%
4%
08.27
thu
thu
DAY
58°F
W 5 mph
precip
8%
8%
NIGHT
56°F
S 2 mph
precip
9%
9%
08.28
fri
fri
DAY
60°F
W 5 mph
precip
3%
3%
NIGHT
58°F
W 3 mph
precip
15%
15%
08.29
sat
sat
DAY
62°F
NW 5 mph
precip
5%
5%
NIGHT
60°F
E 3 mph
precip
15%
15%
08.30
sun
sun
DAY
68°F
SW 3 mph
precip
14%
14%
NIGHT
62°F
S 7 mph
precip
28%
28%
08.31
mon
mon
DAY
58°F
SW 7 mph
precip
69%
69%
NIGHT
56°F
SW 5 mph
precip
23%
23%
09.01
tue
tue
DAY
58°F
W 6 mph
precip
12%
12%
NIGHT
62°F
W 4 mph
precip
28%
28%
Sea water
temperature
temperature
| Thunder Bay |
Weather in
August
August
| Thunder Bay |
7 day weather
forecast
forecast
| Thunder Bay |
10 day weather
forecast
forecast
| Thunder Bay |
14 day weather
forecast
forecast
| Thunder Bay |
Monthly weather
averages
averages
| Thunder Bay |
Current Weather
Conditions
Conditions
| Thunder Bay |
When is the Best
Time to Visit?
Time to Visit?
| Thunder Bay |
Thunder Bay Sea Water Temperature in August, °F
The average sea surface temperature in August 2026 for Thunder Bay was 62.5°F. The maximum and minimum values were 57.0°F and 65.2°F respectively.
Thunder Bay on the Weather Map
Canada Resorts:
NAME
F°
| Halifax |  |
+78 |
| Montreal |  |
+70 |
| Niagara Falls | |
+76 |
| Ottawa |  |
+72 |
| Prince Edward Island | |
+74 |
| Quebec | |
+74 |
| Saint Andrews |  |
+66 |
| Saint John | |
+76 |
| Sydney | |
+68 |
| Thunder Bay |  |
+70 |
| Toronto | |
+72 |
| Vancouver | |
+68 |
| Victoria | |
+64 |
| Winnipeg |  |
+60 |
| Yellowknife | |
+60 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Thunder Bay
Local time: 10:51
19 aug, wednesday
| 1200 | |
70°F | NE 2 mph |
| 1500 | |
76°F | N 9 mph |
| 1800 | |
62°F | N 7 mph |
| 2100 | |
62°F | N 5 mph |
20 aug, thursday
| 0000 | |
58°F | SW 8 mph |
| 0300 | |
56°F | SW 2 mph |
| 0600 | |
54°F | S 5 mph |
| 0900 | |
54°F | S 6 mph |