S
M
T
W
T
F
S
1
42°
24°
2
42°
30°
3
46°
37°
4
56°
42°
5
60°
52°
6
77°
51°
7
65°
41°
8
59°
35°
9
67°
45°
10
78°
60°
11
71°
33°
12
48°
30°
13
57°
36°
14
57°
36°
15
67°
33°
16
34°
18°
17
27°
14°
18
56°
27°
19
71°
36°
20
82°
52°
21
80°
44°
22
86°
34°
23
50°
29°
24
59°
28°
25
70°
38°
26
85°
44°
27
49°
33°
28
52°
28°
29
67°
39°
30
78°
58°
31
79°
61°
1
62°
45°
2
75°
50°
3
77°
63°
4
63°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Mattoon
Mattoon's March 2026 forecast shows daily high temperatures ranging from 63° to 63°, with overnight lows between 37° and 37°. The average high for March is 63° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Mattoon. See also: April | May | June.
