S
M
T
W
T
F
S
26
91°
81°
27
90°
79°
28
91°
79°
29
93°
81°
30
95°
81°
1
86°
77°
2
N/A
3
90°
78°
4
90°
78°
5
90°
78°
6
89°
78°
7
88°
78°
8
87°
79°
9
90°
79°
10
88°
78°
11
89°
79°
12
89°
80°
13
90°
78°
14
90°
79°
15
85°
80°
16
85°
80°
17
84°
80°
18
85°
81°
19
86°
81°
20
87°
80°
21
86°
81°
22
85°
80°
23
85°
80°
24
86°
81°
25
85°
81°
26
85°
80°
27
86°
81°
28
85°
81°
29
85°
80°
30
86°
80°
31
85°
81°
1
85°
81°
2
86°
80°
3
85°
81°
4
86°
81°
5
85°
80°
6
85°
81°
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 84° to 90°, with overnight lows between 78° and 81°. The average high for May is 87° with an average low of 80°. 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.
