S
M
T
W
T
F
S
26
49°
30°
27
53°
28°
28
61°
33°
29
54°
36°
30
59°
38°
1
54°
45°
2
60°
42°
3
51°
34°
4
59°
34°
5
69°
41°
6
64°
51°
7
56°
41°
8
55°
37°
9
58°
35°
10
63°
46°
11
60°
47°
12
48°
42°
13
60°
41°
14
69°
45°
15
52°
45°
16
74°
45°
17
77°
49°
18
64°
45°
19
66°
47°
20
83°
46°
21
58°
33°
22
59°
36°
23
56°
36°
24
74°
47°
25
55°
48°
26
60°
45°
27
54°
42°
28
47°
40°
29
49°
39°
30
50°
41°
31
56°
43°
1
57°
44°
2
62°
44°
3
69°
50°
4
68°
51°
5
68°
52°
6
70°
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 47° to 74°, with overnight lows between 39° and 52°. The average high for May is 60° with an average low of 45°. 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.
