S
M
T
W
T
F
S
31
84°
46°
1
82°
47°
2
81°
55°
3
88°
61°
4
87°
58°
5
87°
64°
6
95°
61°
7
89°
60°
8
81°
64°
9
89°
58°
10
87°
61°
11
75°
53°
12
92°
48°
13
75°
54°
14
68°
51°
15
85°
57°
16
92°
71°
17
87°
58°
18
83°
59°
19
94°
62°
20
92°
62°
21
80°
54°
22
74°
55°
23
82°
55°
24
86°
58°
25
90°
58°
26
91°
59°
27
92°
56°
28
86°
57°
29
82°
58°
30
79°
61°
1
81°
63°
2
84°
60°
3
83°
63°
4
88°
63°
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 74° to 94°, with overnight lows between 54° and 71°. The average high for June is 86° with an average low of 59°. 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.