S
M
T
W
T
F
S
28
76°
56°
29
74°
52°
30
74°
60°
1
79°
57°
2
75°
54°
3
74°
57°
4
76°
60°
5
75°
59°
6
75°
60°
7
76°
61°
8
78°
61°
9
76°
60°
10
78°
61°
11
76°
61°
12
76°
62°
13
78°
62°
14
81°
61°
15
77°
58°
16
76°
58°
17
76°
55°
18
77°
58°
19
79°
60°
20
79°
55°
21
79°
59°
22
82°
64°
23
84°
57°
24
85°
53°
25
77°
54°
26
76°
53°
27
77°
53°
28
77°
57°
29
78°
61°
30
82°
61°
31
84°
62°
1
84°
62°
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 74° to 85°, with overnight lows between 52° and 64°. The average high for July is 78° with an average low of 58°. 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.
