S
M
T
W
T
F
S
29
63°
35°
30
80°
47°
31
69°
39°
1
42°
37°
2
70°
49°
3
64°
48°
4
61°
35°
5
51°
34°
6
48°
30°
7
41°
33°
8
59°
49°
9
61°
43°
10
58°
46°
11
58°
48°
12
57°
45°
13
54°
41°
14
56°
42°
15
69°
51°
16
54°
36°
17
52°
41°
18
62°
44°
19
65°
48°
20
67°
50°
21
68°
50°
22
68°
49°
23
69°
51°
24
69°
50°
25
68°
46°
26
61°
38°
27
55°
38°
28
58°
46°
29
58°
44°
30
59°
42°
1
60°
44°
2
64°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Willowbrook
Willowbrook's April 2026 forecast shows daily high temperatures ranging from 41° to 70°, with overnight lows between 30° and 51°. The average high for April is 60° 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 Willowbrook. See also: May | June | July.
