S
M
T
W
T
F
S
29
62°
38°
30
81°
48°
31
69°
40°
1
41°
35°
2
70°
38°
3
61°
39°
4
58°
39°
5
52°
35°
6
51°
32°
7
45°
35°
8
70°
53°
9
65°
47°
10
57°
38°
11
65°
51°
12
75°
60°
13
76°
57°
14
66°
46°
15
54°
36°
16
55°
42°
17
63°
48°
18
64°
46°
19
61°
48°
20
62°
40°
21
64°
48°
22
64°
47°
23
68°
45°
24
67°
41°
25
61°
47°
26
57°
45°
27
58°
43°
28
68°
43°
29
59°
41°
30
62°
45°
1
66°
45°
2
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Forest Park
Forest Park's April 2026 forecast shows daily high temperatures ranging from 45° to 76°, with overnight lows between 35° and 60°. The average high for April is 63° with an average low of 45°. 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 Forest Park. See also: May | June | July.