S
M
T
W
T
F
S
26
84°
65°
27
85°
62°
28
84°
61°
29
85°
62°
30
88°
63°
31
85°
63°
1
85°
67°
2
89°
66°
3
90°
67°
4
85°
64°
5
86°
66°
6
84°
65°
7
84°
62°
8
85°
62°
9
88°
66°
10
85°
66°
11
85°
65°
12
86°
66°
13
84°
66°
14
84°
65°
15
85°
66°
16
88°
64°
17
89°
66°
18
89°
65°
19
84°
65°
20
84°
60°
21
85°
63°
22
87°
62°
23
88°
60°
24
87°
64°
25
89°
63°
26
85°
64°
27
88°
61°
28
85°
59°
29
82°
57°
30
82°
58°
31
84°
58°
1
87°
59°
2
87°
62°
3
86°
62°
4
84°
61°
5
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mount Pleasant
Mount Pleasant's August 2026 forecast shows daily high temperatures ranging from 82° to 90°, with overnight lows between 57° and 67°. The average high for August is 86° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Mount Pleasant. See also: September | October | November.
