S
M
T
W
T
F
S
29
63°
36°
30
80°
44°
31
70°
38°
1
-100°
35°
2
69°
45°
3
59°
41°
4
59°
34°
5
51°
34°
6
52°
34°
7
42°
33°
8
63°
48°
9
60°
44°
10
60°
46°
11
56°
46°
12
60°
43°
13
56°
42°
14
57°
43°
15
59°
38°
16
53°
36°
17
51°
40°
18
61°
43°
19
64°
47°
20
66°
49°
21
67°
49°
22
67°
50°
23
66°
50°
24
68°
49°
25
67°
45°
26
60°
37°
27
53°
37°
28
56°
45°
29
58°
43°
30
57°
41°
1
59°
44°
2
63°
49°
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 42° to 69°, with overnight lows between 33° and 50°. The average high for April is 59° with an average low of 43°. 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.
