S
M
T
W
T
F
S
26
60°
40°
27
59°
46°
28
53°
36°
29
59°
34°
30
55°
33°
1
56°
34°
2
56°
37°
3
55°
38°
4
55°
37°
5
56°
36°
6
58°
39°
7
64°
38°
8
59°
38°
9
57°
40°
10
59°
38°
11
59°
38°
12
61°
49°
13
65°
43°
14
60°
47°
15
63°
47°
16
62°
44°
17
64°
47°
18
71°
52°
19
74°
54°
20
72°
50°
21
65°
47°
22
66°
47°
23
67°
46°
24
66°
48°
25
74°
53°
26
77°
56°
27
79°
50°
28
78°
54°
29
72°
51°
30
71°
55°
31
77°
47°
1
71°
46°
2
69°
45°
3
68°
49°
4
71°
53°
5
73°
58°
6
73°
49°
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 53° to 79°, with overnight lows between 33° and 58°. The average high for May is 65° 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.
