The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Thunder Bay, ON
Content continues below
Content continues below
April
Average Temperature
High
8°
Feels 6
Low
-3°
Feels -6
Average Precipitation
9 Days
Rain amount
26.7mm
Snow amount
35.7cm
Daily Historical Averages
April 2026
S
M
T
W
T
F
S
1
2
3
4
5
5°
6
-5°
7
2°
8
1°
9
4°
10
5°
11
5°
12
7°
13
3°
14
0°
15
1°
16
4°
17
5°
18
6°
19
6°
20
21
22
23
24
25
26
27
28
29
30
Forecast
Sunday, April 5, 2026
Day
5°
Feels 2
Wind
21 km/h NW
Gust
32 km/h
Humidity
38%
P.O.P
30%
Night
-5°
Feels -14
Wind
14 km/h N
Gust
21 km/h
Humidity
93%
P.O.P
70%
Snow
~1 cm
Historical Averages
Apr 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.