S
M
T
W
T
F
S
30
90°
56°
31
81°
59°
1
79°
58°
2
80°
58°
3
74°
57°
4
76°
56°
5
85°
56°
6
84°
56°
7
83°
58°
8
89°
64°
9
93°
64°
10
89°
59°
11
85°
58°
12
84°
60°
13
84°
58°
14
89°
61°
15
88°
57°
16
88°
60°
17
90°
60°
18
83°
61°
19
88°
60°
20
89°
58°
21
90°
60°
22
90°
60°
23
86°
59°
24
85°
59°
25
88°
60°
26
89°
60°
27
89°
59°
28
88°
60°
29
88°
60°
30
87°
58°
1
88°
59°
2
87°
59°
3
84°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lincoln
Lincoln's September 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 56° and 64°. The average high for September is 86° with an average low of 59°. 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 Lincoln. See also: October | November | December.
