S
M
T
W
T
F
S
30
89°
68°
31
88°
65°
1
88°
64°
2
82°
61°
3
84°
61°
4
86°
67°
5
87°
63°
6
86°
62°
7
82°
60°
8
82°
64°
9
83°
61°
10
83°
60°
11
84°
60°
12
83°
61°
13
81°
59°
14
80°
58°
15
81°
59°
16
81°
59°
17
83°
62°
18
83°
62°
19
81°
63°
20
83°
62°
21
80°
56°
22
77°
56°
23
Hist. Avg.
79°
56°
24
Hist. Avg.
78°
55°
25
Hist. Avg.
78°
55°
26
Hist. Avg.
78°
54°
27
Hist. Avg.
78°
54°
28
Hist. Avg.
77°
54°
29
Hist. Avg.
77°
53°
30
Hist. Avg.
77°
53°
1
Hist. Avg.
76°
52°
2
Hist. Avg.
76°
52°
3
Hist. Avg.
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Carolina
Carolina's September 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 56° and 68°. The average high for September is 83° with an average low of 61°. 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 Carolina. See also: October | November | December.