S
M
T
W
T
F
S
26
88°
71°
27
89°
70°
28
88°
69°
29
89°
71°
30
90°
72°
31
88°
69°
1
87°
73°
2
92°
73°
3
91°
74°
4
92°
72°
5
89°
69°
6
86°
69°
7
86°
71°
8
88°
71°
9
89°
70°
10
87°
69°
11
87°
72°
12
90°
72°
13
87°
71°
14
87°
72°
15
88°
72°
16
90°
71°
17
91°
68°
18
86°
68°
19
86°
71°
20
89°
68°
21
90°
70°
22
86°
68°
23
87°
67°
24
88°
69°
25
89°
66°
26
85°
70°
27
89°
66°
28
87°
64°
29
84°
65°
30
84°
65°
31
85°
66°
1
85°
65°
2
86°
69°
3
88°
68°
4
88°
65°
5
87°
69°
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 84° to 92°, with overnight lows between 64° and 74°. The average high for August is 88° with an average low of 69°. 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.
