S
M
T
W
T
F
S
27
75°
54°
28
76°
53°
29
77°
50°
30
75°
39°
1
73°
37°
2
59°
36°
3
61°
45°
4
61°
47°
5
64°
37°
6
64°
33°
7
59°
41°
8
60°
48°
9
64°
42°
10
69°
35°
11
68°
34°
12
54°
32°
13
55°
31°
14
54°
40°
15
56°
43°
16
62°
42°
17
61°
43°
18
63°
45°
19
66°
41°
20
65°
43°
21
64°
44°
22
66°
40°
23
65°
39°
24
56°
40°
25
63°
31°
26
64°
30°
27
50°
37°
28
55°
39°
29
56°
32°
30
57°
27°
31
47°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Monona
Monona's October 2026 forecast shows daily high temperatures ranging from 47° to 77°, with overnight lows between 26° and 54°. The average high for October is 62° with an average low of 39°. 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 Monona. See also: November | December | January.