S
M
T
W
T
F
S
26
77°
45°
27
73°
52°
28
63°
48°
29
57°
37°
30
57°
34°
1
57°
34°
2
60°
43°
3
72°
44°
4
79°
47°
5
54°
40°
6
54°
37°
7
58°
39°
8
63°
43°
9
69°
48°
10
67°
45°
11
72°
49°
12
73°
51°
13
75°
52°
14
74°
48°
15
72°
49°
16
74°
55°
17
75°
54°
18
75°
54°
19
76°
51°
20
72°
54°
21
69°
46°
22
67°
45°
23
68°
46°
24
69°
46°
25
68°
47°
26
68°
47°
27
69°
48°
28
70°
50°
29
71°
55°
30
76°
58°
31
72°
54°
1
72°
52°
2
76°
56°
3
76°
58°
4
79°
59°
5
80°
60°
6
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Pleasant
Mount Pleasant's May 2026 forecast shows daily high temperatures ranging from 54° to 80°, with overnight lows between 37° and 61°. The average high for May is 71° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mount Pleasant. See also: June | July | August.
