S
M
T
W
T
F
S
31
84°
46°
1
82°
47°
2
81°
55°
3
88°
61°
4
91°
58°
5
91°
61°
6
96°
60°
7
96°
62°
8
85°
61°
9
97°
62°
10
104°
61°
11
96°
62°
12
90°
55°
13
86°
53°
14
84°
53°
15
82°
52°
16
77°
51°
17
83°
55°
18
85°
59°
19
86°
62°
20
89°
60°
21
78°
59°
22
86°
63°
23
89°
62°
24
89°
62°
25
87°
61°
26
82°
62°
27
79°
62°
28
81°
63°
29
82°
62°
30
82°
61°
1
85°
62°
2
87°
63°
3
90°
64°
4
89°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Oshkosh
Oshkosh's June 2026 forecast shows daily high temperatures ranging from 77° to 104°, with overnight lows between 51° and 65°. The average high for June is 87° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Oshkosh. See also: July | August | September.