S
M
T
W
T
F
S
26
93°
68°
27
92°
66°
28
88°
67°
29
91°
69°
30
93°
72°
31
92°
71°
1
93°
72°
2
93°
72°
3
92°
71°
4
93°
72°
5
94°
71°
6
92°
71°
7
93°
70°
8
92°
71°
9
92°
71°
10
91°
70°
11
93°
71°
12
93°
70°
13
87°
66°
14
86°
65°
15
87°
65°
16
88°
67°
17
87°
68°
18
90°
65°
19
90°
65°
20
89°
67°
21
87°
65°
22
89°
66°
23
Hist. Avg.
89°
66°
24
Hist. Avg.
89°
66°
25
Hist. Avg.
89°
66°
26
Hist. Avg.
89°
66°
27
Hist. Avg.
88°
66°
28
Hist. Avg.
88°
66°
29
Hist. Avg.
88°
66°
30
Hist. Avg.
88°
65°
31
Hist. Avg.
88°
65°
1
Hist. Avg.
88°
65°
2
Hist. Avg.
87°
65°
3
Hist. Avg.
87°
64°
4
Hist. Avg.
87°
64°
5
Hist. Avg.
87°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mount Pleasant
Mount Pleasant's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 65° and 72°. The average high for August is 91° 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.
