S
M
T
W
T
F
S
26
77°
55°
27
81°
55°
28
73°
55°
29
73°
57°
30
64°
48°
1
68°
46°
2
63°
50°
3
63°
39°
4
75°
43°
5
75°
50°
6
72°
59°
7
63°
48°
8
70°
41°
9
73°
48°
10
81°
50°
11
68°
52°
12
73°
48°
13
75°
54°
14
64°
45°
15
73°
41°
16
85°
51°
17
87°
60°
18
90°
62°
19
89°
64°
20
90°
65°
21
74°
66°
22
78°
67°
23
75°
64°
24
77°
64°
25
74°
64°
26
78°
66°
27
79°
63°
28
81°
64°
29
79°
61°
30
74°
58°
31
77°
56°
1
76°
58°
2
77°
57°
3
78°
60°
4
77°
59°
5
81°
58°
6
80°
57°
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 74° to 81°, with overnight lows between 56° and 66°. The average high for May is 78° with an average low of 60°. 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.
