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Precipitation
Temperature
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Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Thunder Bay Adventist Academy, ON
Exceptional El Niño dominates this fall
Content continues below
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
18°
20
15°
21
14°
22
15°
23
16°
24
16°
25
18°
26
18°
27
17°
28
17°
29
17°
30
16°
Forecast
Saturday, September 19, 2026
Day
18°
Feels 19
Wind
9 km/h S
Gust
14 km/h
Humidity
64%
P.O.P
40%
Rain
<1 mm
Night
10°
Feels 6
Wind
19 km/h N
Gust
29 km/h
Humidity
94%
P.O.P
40%
Rain
<1 mm
Historical Averages
Sep 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
September
Average Temperature
High
18°
Feels 18
Low
9°
Feels 7
Average Precipitation
11 Days
Rain amount
74.9mm
Snow amount
0.1cm