S
M
T
W
T
F
S
26
79°
63°
27
81°
64°
28
82°
57°
29
75°
57°
30
74°
56°
31
76°
58°
1
77°
59°
2
75°
58°
3
74°
57°
4
74°
56°
5
74°
61°
6
Hist. Avg.
76°
60°
7
Hist. Avg.
76°
60°
8
Hist. Avg.
76°
60°
9
Hist. Avg.
76°
60°
10
Hist. Avg.
76°
60°
11
Hist. Avg.
76°
60°
12
Hist. Avg.
76°
60°
13
Hist. Avg.
75°
59°
14
Hist. Avg.
75°
59°
15
Hist. Avg.
75°
59°
16
Hist. Avg.
75°
59°
17
Hist. Avg.
75°
59°
18
Hist. Avg.
74°
58°
19
Hist. Avg.
74°
58°
20
Hist. Avg.
74°
58°
21
Hist. Avg.
74°
58°
22
Hist. Avg.
74°
58°
23
Hist. Avg.
73°
57°
24
Hist. Avg.
73°
57°
25
Hist. Avg.
73°
57°
26
Hist. Avg.
73°
57°
27
Hist. Avg.
72°
56°
28
Hist. Avg.
72°
56°
29
Hist. Avg.
72°
56°
30
Hist. Avg.
72°
56°
31
Hist. Avg.
71°
55°
1
Hist. Avg.
71°
55°
2
Hist. Avg.
71°
55°
3
Hist. Avg.
70°
54°
4
Hist. Avg.
70°
54°
5
Hist. Avg.
70°
54°
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 74° to 82°, with overnight lows between 56° and 64°. The average high for August is 76° with an average low of 59°. 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.