S
M
T
W
T
F
S
29
82°
47°
30
86°
39°
31
67°
38°
1
48°
36°
2
69°
36°
3
56°
30°
4
58°
28°
5
67°
26°
6
55°
34°
7
59°
44°
8
67°
33°
9
76°
35°
10
57°
46°
11
79°
47°
12
78°
46°
13
69°
38°
14
53°
30°
15
65°
37°
16
72°
41°
17
70°
41°
18
69°
43°
19
67°
41°
20
62°
33°
21
54°
31°
22
52°
31°
23
55°
37°
24
55°
37°
25
64°
42°
26
67°
41°
27
66°
42°
28
63°
43°
29
59°
42°
30
58°
43°
1
60°
42°
2
63°
43°
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 79°, with overnight lows between 30° and 47°. The average high for April is 64° with an average low of 40°. 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.
