S
M
T
W
T
F
S
26
89°
72°
27
93°
76°
28
93°
77°
29
92°
76°
30
92°
76°
31
91°
75°
1
92°
76°
2
89°
76°
3
88°
75°
4
92°
76°
5
92°
76°
6
91°
75°
7
92°
76°
8
92°
76°
9
93°
77°
10
93°
76°
11
91°
76°
12
90°
76°
13
90°
75°
14
89°
76°
15
89°
73°
16
86°
73°
17
85°
75°
18
87°
75°
19
87°
74°
20
88°
75°
21
88°
75°
22
89°
74°
23
87°
75°
24
90°
73°
25
91°
74°
26
91°
73°
27
90°
72°
28
91°
72°
29
90°
74°
30
90°
74°
31
91°
73°
1
89°
73°
2
86°
72°
3
87°
73°
4
86°
73°
5
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Charleston Afb
Charleston Afb's August 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 72° and 77°. The average high for August is 90° with an average low of 75°. 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 Charleston Afb. See also: September | October | November.
