S
M
T
W
T
F
S
26
88°
71°
27
88°
71°
28
87°
70°
29
86°
72°
30
87°
71°
31
89°
72°
1
92°
71°
2
91°
72°
3
91°
69°
4
88°
71°
5
88°
70°
6
87°
71°
7
92°
66°
8
89°
67°
9
88°
67°
10
91°
66°
11
91°
66°
12
90°
70°
13
91°
71°
14
91°
70°
15
90°
69°
16
91°
70°
17
90°
69°
18
86°
70°
19
92°
68°
20
87°
66°
21
86°
65°
22
86°
67°
23
87°
65°
24
86°
64°
25
87°
64°
26
88°
68°
27
89°
69°
28
90°
68°
29
90°
68°
30
89°
67°
31
89°
64°
1
88°
64°
2
82°
61°
3
84°
61°
4
86°
64°
5
87°
63°
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 92°, with overnight lows between 61° and 72°. The average high for August is 88° with an average low of 68°. 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.
