S
M
T
W
T
F
S
26
88°
67°
27
89°
66°
28
89°
68°
29
90°
67°
30
89°
67°
31
88°
66°
1
85°
66°
2
88°
65°
3
87°
66°
4
89°
67°
5
90°
66°
6
89°
67°
7
86°
65°
8
88°
65°
9
87°
64°
10
88°
58°
11
82°
60°
12
83°
59°
13
84°
59°
14
86°
61°
15
83°
62°
16
80°
64°
17
83°
64°
18
85°
62°
19
82°
62°
20
81°
61°
21
80°
63°
22
81°
63°
23
81°
59°
24
84°
62°
25
86°
59°
26
86°
56°
27
81°
57°
28
80°
58°
29
80°
60°
30
79°
61°
31
83°
62°
1
84°
56°
2
78°
55°
3
78°
55°
4
79°
54°
5
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Charles Town
Charles Town's August 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 54° and 68°. The average high for August is 84° with an average low of 62°. 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 Charles Town. See also: September | October | November.
