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
52°
30°
7
44°
36°
8
68°
50°
9
68°
47°
10
57°
40°
11
62°
51°
12
78°
60°
13
76°
57°
14
69°
44°
15
57°
41°
16
55°
39°
17
64°
43°
18
66°
48°
19
61°
40°
20
66°
45°
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 Joliet
Joliet's April 2026 forecast shows daily high temperatures ranging from 44° to 78°, with overnight lows between 30° 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 Joliet. See also: May | June | July.
