S
M
T
W
T
F
S
28
82°
68°
29
89°
68°
30
92°
71°
1
94°
71°
2
94°
70°
3
95°
72°
4
90°
74°
5
90°
69°
6
88°
70°
7
88°
70°
8
83°
70°
9
83°
70°
10
79°
71°
11
81°
69°
12
83°
67°
13
87°
65°
14
91°
68°
15
90°
70°
16
92°
68°
17
91°
70°
18
88°
68°
19
84°
66°
20
84°
66°
21
82°
67°
22
83°
67°
23
84°
66°
24
90°
70°
25
89°
69°
26
88°
68°
27
88°
69°
28
89°
69°
29
85°
68°
30
81°
68°
31
82°
64°
1
83°
67°
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 79° to 92°, with overnight lows between 64° and 71°. The average high for July is 86° 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.
