S
M
T
W
T
F
S
28
89°
71°
29
90°
74°
30
92°
74°
1
93°
74°
2
92°
74°
3
87°
71°
4
90°
72°
5
89°
69°
6
87°
68°
7
86°
67°
8
87°
66°
9
87°
68°
10
84°
67°
11
85°
66°
12
86°
67°
13
90°
66°
14
83°
63°
15
84°
64°
16
84°
64°
17
85°
67°
18
89°
69°
19
90°
68°
20
85°
68°
21
87°
69°
22
85°
70°
23
88°
70°
24
90°
69°
25
88°
69°
26
87°
70°
27
88°
70°
28
90°
69°
29
90°
70°
30
89°
68°
31
86°
62°
1
82°
68°
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 82° to 93°, with overnight lows between 62° and 74°. The average high for July is 87° with an average low of 68°. 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.
