S
M
T
W
T
F
S
28
84°
67°
29
90°
66°
30
84°
65°
1
85°
63°
2
83°
62°
3
81°
61°
4
83°
62°
5
84°
62°
6
87°
64°
7
89°
65°
8
88°
64°
9
85°
68°
10
84°
69°
11
83°
69°
12
83°
68°
13
84°
62°
14
84°
62°
15
85°
63°
16
89°
68°
17
84°
68°
18
84°
67°
19
89°
69°
20
88°
69°
21
88°
67°
22
86°
68°
23
89°
69°
24
88°
68°
25
88°
67°
26
84°
62°
27
82°
62°
28
83°
63°
29
84°
63°
30
84°
64°
31
82°
62°
1
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Charleston
Charleston's July 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 61° and 69°. The average high for July is 85° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Charleston. See also: August | September | October.
