S
M
T
W
T
F
S
29
36°
6°
30
42°
32°
31
41°
30°
1
38°
27°
2
40°
29°
3
39°
32°
4
41°
30°
5
46°
37°
6
47°
27°
7
39°
17°
8
39°
23°
9
44°
34°
10
47°
26°
11
51°
32°
12
49°
34°
13
52°
35°
14
49°
31°
15
50°
32°
16
49°
27°
17
42°
26°
18
42°
28°
19
44°
32°
20
47°
35°
21
51°
32°
22
47°
31°
23
50°
32°
24
49°
37°
25
53°
35°
26
49°
34°
27
47°
36°
28
49°
38°
29
51°
37°
30
53°
38°
1
51°
38°
2
50°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mount Prospect
Mount Prospect's April 2026 forecast shows daily high temperatures ranging from 39° to 53°, with overnight lows between 17° and 38°. The average high for April is 47° with an average low of 32°. 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 Mount Prospect. See also: May | June | July.
