S
M
T
W
T
F
S
29
72°
40°
30
85°
54°
31
84°
65°
1
73°
50°
2
76°
56°
3
83°
63°
4
75°
43°
5
60°
39°
6
65°
37°
7
57°
43°
8
77°
41°
9
81°
48°
10
73°
55°
11
71°
48°
12
80°
60°
13
84°
69°
14
87°
69°
15
79°
63°
16
81°
58°
17
86°
65°
18
70°
41°
19
60°
41°
20
65°
49°
21
67°
53°
22
72°
52°
23
72°
54°
24
70°
51°
25
66°
50°
26
71°
49°
27
65°
49°
28
65°
46°
29
68°
50°
30
65°
47°
1
68°
54°
2
67°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in East St. Louis
East St. Louis's April 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 41° and 69°. The average high for April is 71° with an average low of 53°. 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 St. Louis. See also: May | June | July.
