S
M
T
W
T
F
S
29
69°
41°
30
79°
41°
31
61°
41°
1
47°
33°
2
38°
33°
3
40°
37°
4
44°
35°
5
57°
32°
6
47°
29°
7
45°
22°
8
70°
40°
9
55°
35°
10
54°
37°
11
54°
32°
12
74°
56°
13
77°
57°
14
73°
52°
15
71°
48°
16
74°
55°
17
78°
41°
18
48°
29°
19
52°
35°
20
64°
45°
21
63°
49°
22
62°
45°
23
65°
41°
24
63°
42°
25
74°
54°
26
58°
39°
27
58°
39°
28
59°
38°
29
59°
37°
30
60°
38°
1
65°
40°
2
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Onalaska Town
Onalaska Town's April 2026 forecast shows daily high temperatures ranging from 48° to 78°, with overnight lows between 29° and 57°. The average high for April is 65° with an average low of 44°. 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 Onalaska Town. See also: May | June | July.
