S
M
T
W
T
F
S
27
75°
55°
28
70°
54°
29
67°
51°
30
69°
50°
1
71°
62°
2
69°
43°
3
64°
43°
4
63°
49°
5
60°
35°
6
55°
44°
7
62°
50°
8
63°
46°
9
61°
43°
10
59°
46°
11
61°
48°
12
59°
45°
13
57°
44°
14
60°
37°
15
51°
44°
16
61°
44°
17
61°
43°
18
59°
43°
19
58°
44°
20
58°
42°
21
54°
40°
22
51°
42°
23
55°
42°
24
59°
39°
25
54°
41°
26
59°
35°
27
46°
32°
28
49°
33°
29
54°
38°
30
51°
36°
31
55°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Belleville
Belleville's October 2026 forecast shows daily high temperatures ranging from 46° to 71°, with overnight lows between 32° and 62°. The average high for October is 58° 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 Belleville. See also: November | December | January.
