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
64°
40°
21
81°
51°
22
78°
58°
23
82°
55°
24
82°
50°
25
76°
49°
26
75°
59°
27
80°
51°
28
68°
49°
29
66°
43°
30
66°
42°
1
64°
42°
2
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Bethalto
Bethalto's April 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 42° and 59°. The average high for April is 71° with an average low of 48°. 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 Bethalto. See also: May | June | July.
