S
M
T
W
T
F
S
27
70°
53°
28
72°
53°
29
70°
52°
30
71°
41°
1
70°
39°
2
63°
38°
3
61°
38°
4
60°
39°
5
60°
37°
6
61°
43°
7
63°
47°
8
66°
44°
9
67°
38°
10
61°
36°
11
59°
39°
12
60°
44°
13
59°
46°
14
62°
37°
15
62°
43°
16
Hist. Avg.
62°
39°
17
Hist. Avg.
61°
39°
18
Hist. Avg.
61°
39°
19
Hist. Avg.
60°
38°
20
Hist. Avg.
60°
38°
21
Hist. Avg.
59°
38°
22
Hist. Avg.
59°
37°
23
Hist. Avg.
58°
37°
24
Hist. Avg.
58°
37°
25
Hist. Avg.
57°
36°
26
Hist. Avg.
57°
36°
27
Hist. Avg.
56°
36°
28
Hist. Avg.
56°
35°
29
Hist. Avg.
55°
35°
30
Hist. Avg.
55°
35°
31
Hist. Avg.
54°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Janesville
Janesville's October 2026 forecast shows daily high temperatures ranging from 59° to 72°, with overnight lows between 36° and 53°. The average high for October is 64° with an average low of 42°. 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 Janesville. See also: November | December | January.
