S
M
T
W
T
F
S
29
-20°
-31°
30
-24°
-35°
31
-18°
-26°
1
-7°
-18°
2
-8°
-14°
3
-6°
-20°
4
-7°
-21°
5
-1°
-23°
6
-4°
-19°
7
-5°
-26°
8
-8°
-18°
9
-2°
-17°
10
-5°
-25°
11
-9°
-21°
12
-7°
-21°
13
0°
-19°
14
3°
-15°
15
4°
-17°
16
0°
-14°
17
7°
-5°
18
8°
-4°
19
2°
-6°
20
4°
0°
21
5°
-4°
22
12°
-1°
23
14°
-2°
24
14°
-1°
25
13°
0°
26
15°
0°
27
16°
-1°
28
15°
1°
29
17°
2°
30
17°
2°
1
16°
1°
2
19°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Thom Bay
Thom Bay's April 2026 forecast shows daily high temperatures ranging from -9° to 19°, with overnight lows between -25° and 6°. The average high for April is 7° with an average low of -7°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Thom Bay. See also: May | June | July.