S
M
T
W
T
F
S
29
63°
39°
30
79°
42°
31
73°
37°
1
37°
33°
2
68°
35°
3
60°
37°
4
51°
39°
5
52°
36°
6
51°
31°
7
34°
26°
8
70°
34°
9
68°
41°
10
50°
31°
11
50°
27°
12
81°
47°
13
76°
58°
14
81°
54°
15
72°
57°
16
70°
45°
17
77°
43°
18
52°
35°
19
48°
31°
20
49°
44°
21
69°
44°
22
60°
48°
23
76°
56°
24
69°
42°
25
54°
38°
26
55°
40°
27
53°
40°
28
55°
40°
29
50°
41°
30
52°
42°
1
62°
41°
2
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Waukegan
Waukegan's April 2026 forecast shows daily high temperatures ranging from 48° to 76°, with overnight lows between 31° and 56°. The average high for April is 57° 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 Waukegan. See also: May | June | July.
