S
M
T
W
T
F
S
26
88°
67°
27
87°
67°
28
90°
71°
29
90°
71°
30
88°
72°
31
92°
71°
1
90°
71°
2
87°
70°
3
90°
71°
4
86°
70°
5
88°
71°
6
87°
70°
7
87°
70°
8
88°
71°
9
89°
71°
10
87°
70°
11
87°
70°
12
86°
68°
13
85°
68°
14
85°
66°
15
86°
70°
16
90°
71°
17
87°
70°
18
86°
70°
19
85°
67°
20
85°
66°
21
90°
63°
22
86°
62°
23
85°
63°
24
86°
65°
25
85°
66°
26
86°
65°
27
89°
65°
28
90°
68°
29
89°
67°
30
86°
67°
31
88°
65°
1
83°
62°
2
84°
66°
3
89°
63°
4
89°
67°
5
88°
67°
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 83° to 92°, with overnight lows between 62° and 72°. The average high for August is 87° 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.
