S
M
T
W
T
F
S
26
55°
44°
27
69°
38°
28
64°
43°
29
66°
52°
30
71°
51°
1
68°
38°
2
61°
49°
3
64°
39°
4
77°
46°
5
84°
59°
6
70°
60°
7
66°
45°
8
71°
39°
9
77°
47°
10
85°
50°
11
61°
42°
12
73°
39°
13
76°
54°
14
65°
48°
15
74°
39°
16
86°
47°
17
91°
61°
18
95°
64°
19
96°
67°
20
96°
68°
21
78°
55°
22
57°
52°
23
58°
51°
24
72°
54°
25
75°
64°
26
78°
65°
27
83°
65°
28
81°
59°
29
80°
55°
30
75°
49°
31
76°
58°
1
78°
56°
2
74°
52°
3
79°
56°
4
85°
60°
5
87°
63°
6
83°
62°
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 87°, with overnight lows between 49° and 63°. The average high for May is 80° with an average low of 57°. 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.
