S
M
T
W
T
F
S
27
82°
44°
28
70°
48°
29
72°
52°
30
74°
54°
1
78°
57°
2
79°
57°
3
81°
56°
4
81°
57°
5
82°
57°
6
81°
52°
7
80°
40°
8
68°
48°
9
66°
40°
10
66°
47°
11
68°
50°
12
64°
53°
13
74°
38°
14
77°
42°
15
73°
41°
16
71°
36°
17
65°
43°
18
64°
38°
19
69°
46°
20
69°
45°
21
73°
49°
22
73°
45°
23
70°
37°
24
63°
43°
25
65°
47°
26
70°
32°
27
67°
29°
28
56°
26°
29
51°
30°
30
52°
35°
31
55°
38°
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 51° to 82°, with overnight lows between 26° and 57°. The average high for October is 70° 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 Belleville. See also: November | December | January.
