S
M
T
W
T
F
S
26
63°
51°
27
69°
45°
28
71°
40°
29
74°
52°
30
72°
52°
1
62°
46°
2
54°
48°
3
66°
42°
4
79°
42°
5
81°
55°
6
82°
58°
7
70°
52°
8
72°
46°
9
76°
48°
10
85°
58°
11
69°
45°
12
73°
40°
13
79°
44°
14
75°
53°
15
75°
47°
16
86°
49°
17
93°
62°
18
93°
64°
19
92°
63°
20
94°
68°
21
87°
60°
22
78°
64°
23
83°
68°
24
83°
66°
25
81°
65°
26
80°
64°
27
82°
64°
28
82°
63°
29
81°
63°
30
83°
62°
31
84°
61°
1
85°
65°
2
85°
65°
3
83°
66°
4
82°
65°
5
81°
64°
6
83°
66°
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 94°, with overnight lows between 60° and 68°. The average high for May is 84° 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.
