S
M
T
W
T
F
S
28
89°
71°
29
90°
74°
30
91°
74°
1
91°
76°
2
93°
74°
3
93°
75°
4
90°
70°
5
83°
69°
6
83°
67°
7
85°
65°
8
86°
69°
9
88°
71°
10
81°
69°
11
82°
66°
12
89°
67°
13
90°
68°
14
91°
70°
15
92°
69°
16
90°
67°
17
86°
69°
18
87°
68°
19
86°
66°
20
89°
67°
21
84°
63°
22
84°
64°
23
85°
65°
24
85°
67°
25
87°
67°
26
88°
69°
27
90°
70°
28
91°
70°
29
90°
71°
30
90°
71°
31
89°
70°
1
90°
71°
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 81° to 92°, with overnight lows between 63° and 71°. The average high for July is 88° 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.
