S
M
T
W
T
F
S
26
54°
39°
27
55°
37°
28
58°
33°
29
62°
34°
30
63°
31°
1
66°
34°
2
72°
36°
3
74°
41°
4
71°
46°
5
64°
39°
6
62°
38°
7
73°
30°
8
77°
38°
9
74°
43°
10
79°
36°
11
88°
43°
12
89°
51°
13
82°
55°
14
76°
49°
15
79°
39°
16
72°
39°
17
63°
35°
18
49°
35°
19
60°
30°
20
66°
32°
21
71°
39°
22
71°
40°
23
79°
39°
24
83°
54°
25
78°
56°
26
72°
52°
27
76°
49°
28
74°
40°
29
67°
42°
30
72°
44°
31
78°
45°
1
76°
45°
2
78°
47°
3
78°
48°
4
75°
47°
5
73°
44°
6
75°
45°
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 67° to 78°, with overnight lows between 40° and 56°. The average high for May is 75° with an average low of 46°. 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.
