S
M
T
W
T
F
S
1
37°
18°
2
43°
32°
3
43°
37°
4
43°
37°
5
52°
39°
6
68°
46°
7
61°
30°
8
64°
32°
9
75°
45°
10
82°
45°
11
45°
32°
12
48°
27°
13
50°
36°
14
52°
32°
15
55°
27°
16
27°
11°
17
27°
7°
18
54°
27°
19
72°
37°
20
79°
43°
21
88°
48°
22
64°
36°
23
50°
28°
24
57°
33°
25
79°
45°
26
86°
43°
27
50°
30°
28
54°
21°
29
63°
41°
30
84°
54°
31
77°
52°
1
50°
41°
2
73°
41°
3
63°
43°
4
54°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Mount Pleasant
Mount Pleasant's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. 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 Mount Pleasant. See also: April | May | June.