S
M
T
W
T
F
S
26
62°
41°
27
66°
42°
28
65°
50°
29
52°
43°
30
55°
41°
1
50°
40°
2
48°
33°
3
65°
32°
4
76°
46°
5
62°
49°
6
55°
45°
7
58°
38°
8
65°
41°
9
72°
47°
10
62°
39°
11
60°
37°
12
59°
35°
13
60°
45°
14
66°
46°
15
72°
39°
16
81°
49°
17
86°
60°
18
89°
65°
19
86°
64°
20
70°
47°
21
64°
41°
22
66°
45°
23
N/A
24
68°
53°
25
78°
52°
26
83°
60°
27
84°
57°
28
79°
53°
29
78°
52°
30
75°
55°
31
76°
53°
1
77°
56°
2
79°
60°
3
79°
60°
4
78°
58°
5
81°
59°
6
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Belleville
Belleville's May 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 52° and 60°. The average high for May is 78° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Belleville. See also: June | July | August.
