S
M
T
W
T
F
S
27
79°
58°
28
79°
56°
29
80°
51°
30
77°
59°
1
75°
57°
2
73°
56°
3
68°
57°
4
70°
56°
5
72°
56°
6
72°
54°
7
70°
53°
8
70°
43°
9
61°
42°
10
61°
41°
11
62°
43°
12
64°
51°
13
68°
52°
14
71°
53°
15
70°
52°
16
68°
52°
17
65°
42°
18
58°
38°
19
57°
37°
20
59°
47°
21
66°
49°
22
64°
49°
23
62°
48°
24
61°
48°
25
63°
47°
26
62°
47°
27
60°
39°
28
59°
36°
29
56°
45°
30
54°
33°
31
53°
33°
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 53° to 80°, with overnight lows between 33° and 59°. The average high for October is 66° with an average low of 48°. 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.
