S
M
T
W
T
F
S
26
69°
45°
27
67°
49°
28
62°
50°
29
53°
41°
30
50°
39°
1
47°
39°
2
50°
33°
3
60°
43°
4
77°
51°
5
56°
45°
6
56°
35°
7
57°
41°
8
64°
36°
9
70°
41°
10
60°
35°
11
60°
36°
12
67°
31°
13
53°
37°
14
59°
39°
15
71°
37°
16
79°
61°
17
87°
62°
18
84°
66°
19
80°
58°
20
60°
50°
21
68°
46°
22
76°
48°
23
64°
55°
24
65°
52°
25
79°
46°
26
N/A
27
75°
54°
28
71°
51°
29
69°
49°
30
73°
48°
31
72°
51°
1
74°
52°
2
77°
56°
3
76°
58°
4
77°
57°
5
75°
60°
6
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Mount Pleasant
Mount Pleasant's May 2026 forecast shows daily high temperatures ranging from 69° to 77°, with overnight lows between 48° and 60°. The average high for May is 74° with an average low of 54°. 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.
