S
M
T
W
T
F
S
26
55°
35°
27
67°
37°
28
63°
48°
29
63°
46°
30
60°
41°
1
63°
48°
2
61°
44°
3
59°
45°
4
81°
55°
5
84°
60°
6
71°
48°
7
64°
43°
8
65°
53°
9
68°
46°
10
74°
50°
11
59°
42°
12
65°
47°
13
75°
53°
14
65°
48°
15
65°
47°
16
80°
61°
17
86°
62°
18
92°
71°
19
94°
72°
20
92°
55°
21
59°
54°
22
62°
51°
23
53°
50°
24
57°
52°
25
71°
56°
26
82°
66°
27
82°
64°
28
78°
57°
29
80°
59°
30
76°
51°
31
77°
55°
1
78°
53°
2
75°
55°
3
74°
56°
4
75°
58°
5
84°
63°
6
82°
63°
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 74° to 84°, with overnight lows between 51° and 66°. The average high for May is 79° with an average low of 58°. 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.
