S
M
T
W
T
F
S
28
80°
65°
29
90°
64°
30
92°
64°
1
97°
70°
2
98°
71°
3
99°
73°
4
97°
67°
5
88°
70°
6
80°
70°
7
79°
67°
8
83°
67°
9
89°
69°
10
84°
67°
11
88°
67°
12
87°
64°
13
88°
63°
14
97°
72°
15
97°
69°
16
94°
64°
17
94°
67°
18
88°
65°
19
81°
62°
20
87°
64°
21
84°
60°
22
83°
61°
23
83°
63°
24
84°
61°
25
83°
63°
26
84°
62°
27
82°
61°
28
84°
62°
29
81°
59°
30
80°
65°
31
80°
65°
1
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Belleville
Belleville's July 2026 forecast shows daily high temperatures ranging from 80° to 97°, with overnight lows between 59° and 72°. The average high for July is 86° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Belleville. See also: August | September | October.
