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Monthly Historical Averages
Thunder Bay, Unorganized, ON
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April
Average Temperature
High
6°
Feels 4
Low
-6°
Feels -10
Average Precipitation
10 Days
Rain amount
14.3mm
Snow amount
47.4cm
Content continues below
Daily Historical Averages
April 2026
S
M
T
W
T
F
S
1
2
3
4
-3°
5
2°
6
-8°
7
1°
8
1°
9
1°
10
2°
11
4°
12
6°
13
2°
14
2°
15
2°
16
2°
17
5°
18
5°
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Saturday, April 4, 2026
Day
-3°
Feels -9
Wind
17 km/h E
Gust
26 km/h
Humidity
73%
P.O.P
90%
Snow
~10 cm
Night
-7°
Feels -14
Wind
18 km/h N
Gust
27 km/h
Humidity
91%
P.O.P
80%
Snow
5-10 cm
Historical Averages
Apr 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.