S
M
T
W
T
F
S
26
88°
70°
27
90°
73°
28
88°
71°
29
88°
68°
30
76°
65°
1
65°
53°
2
73°
51°
3
78°
47°
4
80°
51°
5
83°
57°
6
86°
73°
7
76°
62°
8
71°
69°
9
79°
66°
10
87°
68°
11
83°
57°
12
81°
58°
13
83°
63°
14
84°
67°
15
83°
68°
16
85°
70°
17
84°
68°
18
87°
71°
19
87°
70°
20
86°
66°
21
85°
68°
22
83°
69°
23
86°
69°
24
87°
68°
25
85°
69°
26
84°
69°
27
84°
70°
28
85°
70°
29
84°
69°
30
84°
69°
31
85°
67°
1
84°
67°
2
86°
71°
3
86°
70°
4
85°
71°
5
84°
72°
6
86°
71°
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 71° to 87°, with overnight lows between 57° and 72°. The average high for May is 84° with an average low of 68°. 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.
