S
M
T
W
T
F
S
30
91°
68°
31
91°
68°
1
90°
66°
2
87°
65°
3
88°
68°
4
90°
65°
5
88°
65°
6
89°
66°
7
90°
67°
8
89°
66°
9
90°
66°
10
85°
65°
11
88°
66°
12
88°
64°
13
83°
63°
14
82°
64°
15
83°
64°
16
84°
62°
17
85°
60°
18
83°
59°
19
82°
60°
20
81°
62°
21
80°
57°
22
81°
57°
23
84°
58°
24
83°
60°
25
84°
62°
26
83°
61°
27
84°
59°
28
79°
58°
29
83°
55°
30
81°
54°
1
Hist. Avg.
80°
54°
2
Hist. Avg.
79°
54°
3
Hist. Avg.
79°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lincolnton
Lincolnton's September 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 54° and 68°. The average high for September is 85° with an average low of 63°. 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 Lincolnton. See also: October | November | December.