S
M
T
W
T
F
S
29
63°
37°
30
66°
37°
31
53°
36°
1
37°
30°
2
39°
31°
3
42°
33°
4
43°
33°
5
51°
32°
6
44°
25°
7
40°
20°
8
67°
28°
9
54°
41°
10
51°
34°
11
55°
30°
12
74°
44°
13
77°
53°
14
65°
52°
15
59°
51°
16
62°
48°
17
77°
48°
18
48°
35°
19
46°
32°
20
53°
26°
21
70°
43°
22
67°
46°
23
79°
45°
24
70°
52°
25
62°
43°
26
64°
48°
27
60°
47°
28
58°
40°
29
55°
37°
30
52°
35°
1
53°
38°
2
55°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Oshkosh
Oshkosh's April 2026 forecast shows daily high temperatures ranging from 52° to 64°, with overnight lows between 35° and 48°. The average high for April is 57° with an average low of 41°. 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 Oshkosh. See also: May | June | July.
