S
M
T
W
T
F
S
29
71°
38°
30
84°
57°
31
81°
61°
1
64°
48°
2
74°
55°
3
83°
59°
4
74°
41°
5
58°
39°
6
61°
40°
7
55°
40°
8
76°
38°
9
81°
55°
10
70°
51°
11
72°
46°
12
80°
62°
13
84°
66°
14
88°
67°
15
74°
62°
16
81°
60°
17
84°
61°
18
63°
42°
19
66°
40°
20
67°
47°
21
81°
55°
22
80°
57°
23
80°
62°
24
70°
50°
25
69°
49°
26
67°
50°
27
65°
51°
28
59°
47°
29
67°
49°
30
65°
48°
1
68°
48°
2
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in East Alton
East Alton's April 2026 forecast shows daily high temperatures ranging from 59° to 81°, with overnight lows between 47° and 62°. The average high for April is 70° with an average low of 51°. 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 East Alton. See also: May | June | July.