S
M
T
W
T
F
S
27
80°
74°
28
82°
74°
29
78°
73°
30
78°
73°
1
77°
72°
2
78°
73°
3
79°
72°
4
82°
71°
5
82°
71°
6
81°
72°
7
79°
71°
8
76°
71°
9
80°
70°
10
80°
69°
11
79°
68°
12
79°
67°
13
78°
66°
14
74°
67°
15
73°
66°
16
77°
67°
17
79°
66°
18
74°
68°
19
79°
67°
20
78°
66°
21
78°
66°
22
77°
65°
23
77°
65°
24
78°
64°
25
78°
65°
26
77°
65°
27
78°
62°
28
78°
57°
29
73°
62°
30
70°
62°
31
73°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Charleston
Charleston's October 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 54° and 74°. The average high for October is 78° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Charleston. See also: November | December | January.
