S
M
T
W
T
F
S
28
89°
71°
29
90°
74°
30
91°
74°
1
92°
73°
2
93°
74°
3
89°
73°
4
87°
72°
5
87°
69°
6
87°
70°
7
88°
70°
8
87°
69°
9
88°
66°
10
88°
67°
11
88°
69°
12
89°
70°
13
89°
67°
14
88°
66°
15
84°
64°
16
84°
64°
17
83°
63°
18
83°
64°
19
84°
70°
20
84°
70°
21
90°
69°
22
88°
70°
23
90°
70°
24
90°
69°
25
89°
70°
26
90°
71°
27
91°
71°
28
91°
70°
29
92°
71°
30
91°
70°
31
91°
70°
1
88°
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 83° to 93°, with overnight lows between 63° and 74°. The average high for July is 88° with an average low of 69°. 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.
