S
M
T
W
T
F
S
30
88°
76°
31
87°
77°
1
87°
75°
2
83°
75°
3
84°
74°
4
86°
77°
5
85°
76°
6
86°
77°
7
87°
76°
8
86°
75°
9
87°
76°
10
84°
76°
11
86°
75°
12
85°
74°
13
85°
75°
14
80°
75°
15
83°
74°
16
83°
74°
17
84°
72°
18
83°
70°
19
80°
70°
20
80°
74°
21
82°
70°
22
81°
71°
23
83°
69°
24
82°
71°
25
83°
73°
26
82°
72°
27
83°
70°
28
82°
71°
29
80°
69°
30
81°
69°
1
79°
67°
2
77°
67°
3
Hist. Avg.
79°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Charleston Central
Charleston Central's September 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 67° and 77°. The average high for September is 83° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Charleston Central. See also: October | November | December.
