S
M
T
W
T
F
S
27
63°
40°
28
64°
40°
29
65°
41°
30
65°
48°
1
64°
50°
2
68°
49°
3
64°
44°
4
64°
47°
5
69°
42°
6
68°
37°
7
58°
36°
8
55°
36°
9
56°
38°
10
60°
35°
11
56°
35°
12
55°
40°
13
57°
34°
14
56°
40°
15
55°
47°
16
61°
43°
17
63°
37°
18
60°
42°
19
58°
38°
20
53°
38°
21
55°
39°
22
Hist. Avg.
57°
38°
23
Hist. Avg.
56°
38°
24
Hist. Avg.
56°
37°
25
Hist. Avg.
55°
37°
26
Hist. Avg.
55°
36°
27
Hist. Avg.
54°
36°
28
Hist. Avg.
54°
36°
29
Hist. Avg.
54°
35°
30
Hist. Avg.
53°
35°
31
Hist. Avg.
52°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Sun Prairie
Sun Prairie's October 2026 forecast shows daily high temperatures ranging from 53° to 69°, with overnight lows between 34° and 50°. The average high for October is 60° with an average low of 41°. 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 Sun Prairie. See also: November | December | January.