S
M
T
W
T
F
S
26
67°
54°
27
71°
51°
28
73°
44°
29
82°
56°
30
76°
60°
1
61°
51°
2
56°
45°
3
71°
39°
4
82°
50°
5
83°
54°
6
83°
62°
7
79°
55°
8
74°
51°
9
78°
53°
10
86°
60°
11
72°
52°
12
73°
44°
13
81°
46°
14
76°
60°
15
78°
51°
16
88°
60°
17
91°
65°
18
93°
62°
19
92°
67°
20
93°
68°
21
86°
63°
22
83°
60°
23
81°
60°
24
81°
62°
25
84°
62°
26
85°
63°
27
89°
64°
28
85°
65°
29
86°
66°
30
86°
66°
31
85°
65°
1
82°
65°
2
83°
66°
3
83°
66°
4
81°
65°
5
82°
67°
6
87°
68°
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 78° to 93°, with overnight lows between 51° and 68°. The average high for May is 85° with an average low of 64°. 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.
