S
M
T
W
T
F
S
27
79°
63°
28
87°
61°
29
92°
57°
30
94°
65°
1
90°
71°
2
77°
69°
3
73°
66°
4
85°
59°
5
85°
50°
6
85°
48°
7
87°
50°
8
90°
55°
9
90°
54°
10
86°
60°
11
85°
58°
12
89°
62°
13
88°
61°
14
75°
58°
15
75°
51°
16
72°
50°
17
75°
49°
18
74°
48°
19
65°
48°
20
65°
52°
21
66°
48°
22
66°
44°
23
70°
50°
24
73°
44°
25
65°
48°
26
75°
49°
27
70°
49°
28
70°
50°
29
73°
52°
30
73°
53°
31
70°
52°
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 65° to 90°, with overnight lows between 44° and 62°. The average high for October is 76° with an average low of 52°. 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.
