S
M
T
W
T
F
S
26
90°
68°
27
87°
67°
28
82°
64°
29
83°
56°
30
91°
57°
31
88°
61°
1
73°
66°
2
80°
61°
3
83°
56°
4
86°
58°
5
82°
63°
6
81°
65°
7
87°
66°
8
86°
60°
9
79°
56°
10
87°
63°
11
81°
59°
12
86°
66°
13
83°
61°
14
85°
60°
15
82°
56°
16
90°
69°
17
83°
59°
18
86°
55°
19
81°
55°
20
83°
49°
21
82°
53°
22
81°
60°
23
74°
52°
24
79°
52°
25
80°
56°
26
80°
61°
27
80°
53°
28
77°
51°
29
81°
61°
30
80°
63°
31
75°
56°
1
75°
55°
2
76°
54°
3
77°
55°
4
77°
53°
5
76°
56°
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 75° to 81°, with overnight lows between 51° and 63°. The average high for August is 78° with an average low of 56°. 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.
