S
M
T
W
T
F
S
26
88°
72°
27
88°
72°
28
89°
75°
29
89°
75°
30
91°
76°
31
91°
76°
1
89°
75°
2
88°
76°
3
90°
76°
4
87°
75°
5
90°
74°
6
88°
75°
7
88°
75°
8
89°
74°
9
90°
76°
10
89°
76°
11
87°
75°
12
90°
74°
13
87°
73°
14
87°
73°
15
89°
75°
16
91°
76°
17
88°
76°
18
90°
75°
19
88°
73°
20
89°
72°
21
90°
70°
22
87°
69°
23
87°
70°
24
86°
71°
25
87°
73°
26
88°
72°
27
88°
73°
28
89°
74°
29
88°
73°
30
86°
72°
31
86°
72°
1
87°
71°
2
86°
70°
3
87°
72°
4
90°
73°
5
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in North Charleston
North Charleston's August 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 69° and 76°. The average high for August is 88° with an average low of 74°. 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 North Charleston. See also: September | October | November.
