S
M
T
W
T
F
S
28
95°
79°
29
97°
77°
30
90°
77°
1
86°
73°
2
88°
72°
3
90°
72°
4
91°
72°
5
93°
78°
6
91°
80°
7
94°
79°
8
94°
80°
9
95°
79°
10
92°
80°
11
94°
77°
12
90°
78°
13
84°
74°
14
85°
76°
15
89°
77°
16
88°
76°
17
89°
78°
18
88°
77°
19
88°
77°
20
91°
80°
21
89°
80°
22
89°
78°
23
88°
78°
24
84°
77°
25
85°
77°
26
85°
78°
27
86°
78°
28
84°
79°
29
84°
78°
30
85°
79°
31
87°
80°
1
88°
79°
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 95°, with overnight lows between 74° and 80°. The average high for July is 89° with an average low of 78°. 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.
