S
M
T
W
T
F
S
29
63°
38°
30
80°
44°
31
67°
40°
1
40°
35°
2
69°
38°
3
59°
39°
4
52°
40°
5
52°
36°
6
51°
31°
7
41°
26°
8
70°
35°
9
69°
46°
10
54°
35°
11
57°
29°
12
79°
55°
13
77°
61°
14
81°
58°
15
73°
58°
16
73°
51°
17
80°
49°
18
62°
36°
19
50°
33°
20
56°
28°
21
76°
47°
22
77°
50°
23
80°
48°
24
70°
49°
25
63°
44°
26
63°
39°
27
66°
50°
28
65°
49°
29
58°
41°
30
56°
41°
1
51°
35°
2
57°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Naperville
Naperville's April 2026 forecast shows daily high temperatures ranging from 51° to 66°, with overnight lows between 35° and 50°. The average high for April is 59° with an average low of 42°. 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 Naperville. See also: May | June | July.
