S
M
T
W
T
F
S
31
74°
49°
1
76°
51°
2
75°
50°
3
79°
58°
4
82°
65°
5
79°
64°
6
80°
64°
7
79°
62°
8
82°
63°
9
79°
64°
10
81°
63°
11
82°
59°
12
80°
60°
13
79°
62°
14
76°
66°
15
72°
53°
16
71°
53°
17
72°
57°
18
78°
62°
19
81°
62°
20
82°
63°
21
80°
63°
22
81°
62°
23
81°
62°
24
76°
58°
25
76°
63°
26
83°
63°
27
78°
60°
28
75°
57°
29
75°
56°
30
76°
58°
1
80°
65°
2
83°
65°
3
81°
61°
4
76°
57°
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 71° to 83°, with overnight lows between 50° and 66°. The average high for June is 78° 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.