S
M
T
W
T
F
S
27
73°
45°
28
75°
46°
29
77°
48°
30
66°
59°
1
64°
54°
2
66°
41°
3
70°
41°
4
70°
43°
5
70°
41°
6
73°
48°
7
75°
52°
8
70°
46°
9
68°
56°
10
82°
53°
11
78°
56°
12
80°
60°
13
69°
48°
14
61°
55°
15
63°
46°
16
59°
43°
17
56°
40°
18
58°
42°
19
60°
44°
20
62°
43°
21
55°
49°
22
60°
43°
23
52°
37°
24
59°
43°
25
62°
42°
26
59°
38°
27
60°
33°
28
49°
30°
29
51°
40°
30
55°
38°
31
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Janesville
Janesville's October 2026 forecast shows daily high temperatures ranging from 49° to 82°, with overnight lows between 30° and 60°. The average high for October is 62° 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 Janesville. See also: November | December | January.
