S
M
T
W
T
F
S
29
67°
39°
30
78°
58°
31
79°
61°
1
62°
45°
2
74°
59°
3
75°
59°
4
63°
36°
5
55°
39°
6
55°
32°
7
51°
38°
8
63°
51°
9
66°
46°
10
69°
52°
11
67°
54°
12
68°
50°
13
63°
46°
14
65°
44°
15
64°
43°
16
70°
45°
17
59°
44°
18
63°
47°
19
69°
50°
20
71°
52°
21
72°
53°
22
72°
53°
23
71°
52°
24
73°
54°
25
73°
52°
26
68°
44°
27
60°
42°
28
61°
46°
29
62°
45°
30
63°
44°
1
64°
49°
2
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mattoon
Mattoon's April 2026 forecast shows daily high temperatures ranging from 51° to 75°, with overnight lows between 32° and 59°. The average high for April is 66° with an average low of 47°. 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 Mattoon. See also: May | June | July.
