S
M
T
W
T
F
S
26
80°
66°
27
76°
66°
28
77°
65°
29
72°
63°
30
71°
64°
1
73°
64°
2
76°
65°
3
73°
61°
4
72°
61°
5
72°
62°
6
73°
61°
7
73°
62°
8
75°
69°
9
80°
69°
10
81°
70°
11
78°
69°
12
75°
63°
13
73°
62°
14
74°
64°
15
76°
70°
16
78°
67°
17
77°
70°
18
81°
72°
19
77°
71°
20
77°
72°
21
78°
72°
22
80°
73°
23
83°
73°
24
83°
72°
25
82°
74°
26
83°
74°
27
84°
73°
28
83°
73°
29
84°
72°
30
85°
74°
31
84°
73°
1
85°
69°
2
83°
70°
3
80°
72°
4
80°
73°
5
81°
74°
6
83°
74°
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 85°, with overnight lows between 61° and 74°. The average high for May is 78° with an average low of 69°. 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.
