S
M
T
W
T
F
S
29
53°
24°
30
72°
38°
31
62°
39°
1
74°
40°
2
42°
36°
3
70°
37°
4
60°
38°
5
55°
38°
6
50°
28°
7
46°
25°
8
47°
26°
9
59°
25°
10
73°
33°
11
59°
41°
12
57°
28°
13
73°
43°
14
85°
57°
15
77°
50°
16
72°
48°
17
67°
44°
18
60°
40°
19
50°
31°
20
52°
25°
21
50°
25°
22
47°
34°
23
64°
37°
24
56°
38°
25
53°
41°
26
58°
41°
27
59°
42°
28
56°
43°
29
54°
45°
30
55°
43°
1
54°
42°
2
58°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Arlington Heights
Arlington Heights's April 2026 forecast shows daily high temperatures ranging from 53° to 64°, with overnight lows between 37° and 45°. The average high for April is 57° with an average low of 41°. 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 Arlington Heights. See also: May | June | July.
