S
M
T
W
T
F
S
28
87°
73°
29
85°
68°
30
90°
64°
1
92°
66°
2
96°
71°
3
100°
71°
4
100°
72°
5
99°
75°
6
97°
73°
7
92°
72°
8
94°
74°
9
96°
76°
10
97°
72°
11
94°
72°
12
89°
73°
13
80°
71°
14
88°
63°
15
94°
66°
16
98°
72°
17
95°
74°
18
91°
73°
19
92°
71°
20
87°
69°
21
90°
66°
22
86°
68°
23
84°
65°
24
85°
67°
25
86°
69°
26
85°
69°
27
89°
68°
28
89°
71°
29
91°
70°
30
86°
70°
31
86°
70°
1
87°
70°
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 84° to 98°, with overnight lows between 63° and 74°. The average high for July is 89° 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.
