S
M
T
W
T
F
S
29
56°
32°
30
74°
43°
31
76°
47°
1
47°
34°
2
60°
33°
3
72°
47°
4
64°
39°
5
45°
31°
6
53°
29°
7
40°
25°
8
56°
47°
9
66°
45°
10
53°
35°
11
55°
39°
12
72°
58°
13
72°
60°
14
63°
48°
15
55°
38°
16
56°
40°
17
63°
44°
18
63°
42°
19
62°
44°
20
64°
40°
21
66°
48°
22
68°
49°
23
69°
48°
24
67°
44°
25
60°
41°
26
58°
44°
27
58°
41°
28
65°
44°
29
59°
42°
30
60°
46°
1
66°
44°
2
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Belleville
Belleville's April 2026 forecast shows daily high temperatures ranging from 40° to 72°, with overnight lows between 25° and 60°. The average high for April is 61° 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 April weather will actually feel in Belleville. See also: May | June | July.