S
M
T
W
T
F
S
26
86°
64°
27
89°
69°
28
89°
69°
29
88°
68°
30
85°
68°
31
84°
69°
1
89°
69°
2
87°
68°
3
88°
69°
4
89°
69°
5
89°
68°
6
88°
68°
7
89°
69°
8
88°
68°
9
89°
69°
10
90°
69°
11
89°
68°
12
84°
68°
13
84°
67°
14
86°
67°
15
83°
64°
16
82°
64°
17
79°
67°
18
82°
68°
19
83°
67°
20
83°
67°
21
82°
66°
22
83°
67°
23
84°
66°
24
88°
66°
25
88°
65°
26
87°
66°
27
86°
65°
28
87°
66°
29
85°
65°
30
84°
65°
31
83°
63°
1
80°
65°
2
80°
65°
3
82°
64°
4
82°
65°
5
80°
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 79° to 90°, with overnight lows between 63° and 69°. The average high for August is 85° with an average low of 67°. 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.
