S
M
T
W
T
F
S
26
79°
79°
27
88°
76°
28
95°
79°
29
91°
76°
30
91°
74°
31
90°
82°
1
88°
77°
2
86°
75°
3
88°
75°
4
86°
75°
5
84°
73°
6
88°
75°
7
90°
77°
8
84°
75°
9
90°
75°
10
93°
77°
11
95°
77°
12
93°
75°
13
97°
77°
14
93°
75°
15
95°
77°
16
91°
77°
17
99°
79°
18
98°
78°
19
97°
80°
20
95°
79°
21
93°
79°
22
90°
76°
23
89°
77°
24
90°
79°
25
87°
77°
26
88°
76°
27
85°
76°
28
83°
75°
29
83°
74°
30
85°
75°
31
83°
76°
1
82°
73°
2
83°
74°
3
84°
77°
4
86°
73°
5
82°
72°
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 82° to 98°, with overnight lows between 72° and 80°. The average high for August is 88° with an average low of 76°. 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.
