S
M
T
W
T
F
S
29
63°
41°
30
81°
52°
31
69°
41°
1
42°
37°
2
71°
39°
3
63°
40°
4
60°
41°
5
53°
38°
6
52°
34°
7
38°
30°
8
71°
37°
9
71°
50°
10
53°
40°
11
58°
37°
12
81°
57°
13
79°
63°
14
82°
57°
15
73°
61°
16
74°
50°
17
82°
48°
18
63°
40°
19
51°
37°
20
57°
35°
21
75°
52°
22
60°
50°
23
78°
62°
24
71°
48°
25
59°
46°
26
59°
53°
27
62°
50°
28
58°
47°
29
56°
45°
30
52°
43°
1
56°
46°
2
57°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Chicago
Chicago's April 2026 forecast shows daily high temperatures ranging from 52° to 78°, with overnight lows between 43° and 62°. The average high for April is 62° with an average low of 49°. 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 Chicago. See also: May | June | July.