S
M
T
W
T
F
S
27
69°
42°
28
73°
53°
29
74°
49°
30
69°
61°
1
66°
55°
2
63°
42°
3
63°
51°
4
66°
41°
5
61°
45°
6
65°
53°
7
70°
51°
8
70°
50°
9
65°
54°
10
69°
52°
11
70°
51°
12
61°
45°
13
60°
47°
14
62°
46°
15
51°
30°
16
64°
47°
17
64°
46°
18
63°
45°
19
58°
43°
20
52°
40°
21
50°
38°
22
52°
41°
23
61°
44°
24
61°
45°
25
60°
39°
26
49°
38°
27
51°
41°
28
57°
41°
29
53°
38°
30
55°
42°
31
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Oshkosh
Oshkosh's October 2026 forecast shows daily high temperatures ranging from 49° to 70°, with overnight lows between 30° and 54°. The average high for October is 60° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Oshkosh. See also: November | December | January.