S
M
T
W
T
F
S
26
82°
57°
27
78°
58°
28
81°
70°
29
78°
60°
30
78°
59°
31
78°
63°
1
79°
62°
2
82°
64°
3
82°
64°
4
83°
63°
5
78°
60°
6
78°
62°
7
77°
60°
8
77°
58°
9
78°
63°
10
77°
59°
11
76°
57°
12
77°
60°
13
80°
65°
14
82°
63°
15
80°
60°
16
77°
58°
17
79°
63°
18
76°
61°
19
76°
60°
20
76°
61°
21
76°
62°
22
77°
62°
23
76°
61°
24
76°
62°
25
77°
60°
26
78°
62°
27
80°
63°
28
81°
59°
29
74°
56°
30
78°
54°
31
81°
56°
1
82°
59°
2
83°
58°
3
83°
60°
4
82°
54°
5
78°
57°
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 74° to 83°, with overnight lows between 54° and 70°. The average high for August is 79° with an average low of 60°. 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.
