S
M
T
W
T
F
S
26
45°
35°
27
52°
38°
28
52°
34°
29
60°
36°
30
59°
34°
1
63°
32°
2
76°
28°
3
73°
36°
4
75°
38°
5
48°
38°
6
54°
36°
7
71°
37°
8
73°
46°
9
75°
45°
10
73°
44°
11
87°
47°
12
78°
51°
13
84°
51°
14
89°
56°
15
86°
46°
16
79°
51°
17
69°
48°
18
48°
39°
19
61°
36°
20
54°
43°
21
56°
42°
22
66°
41°
23
79°
42°
24
90°
53°
25
91°
51°
26
84°
61°
27
79°
56°
28
73°
57°
29
78°
56°
30
82°
53°
31
84°
46°
1
82°
47°
2
81°
55°
3
88°
61°
4
87°
58°
5
87°
64°
6
95°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oshkosh
Oshkosh's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Oshkosh. See also: June | July | August.
