S
M
T
W
T
F
S
26
89°
70°
27
85°
72°
28
77°
63°
29
82°
59°
30
86°
63°
31
75°
61°
1
78°
66°
2
77°
64°
3
82°
56°
4
83°
60°
5
72°
60°
6
79°
58°
7
82°
64°
8
81°
64°
9
78°
60°
10
82°
62°
11
81°
66°
12
81°
65°
13
76°
65°
14
80°
66°
15
81°
67°
16
83°
63°
17
81°
59°
18
79°
63°
19
77°
57°
20
79°
59°
21
75°
61°
22
78°
59°
23
73°
55°
24
74°
49°
25
80°
53°
26
80°
64°
27
78°
58°
28
82°
57°
29
69°
58°
30
84°
65°
31
90°
67°
1
91°
71°
2
85°
66°
3
81°
68°
4
83°
68°
5
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oshkosh
Oshkosh's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August 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 August weather will actually feel in Oshkosh. See also: September | October | November.
