S
M
T
W
T
F
S
30
100°
73°
31
102°
75°
1
101°
72°
2
100°
77°
3
100°
77°
4
100°
75°
5
100°
72°
6
100°
73°
7
97°
72°
8
102°
73°
9
99°
70°
10
81°
66°
11
86°
64°
12
90°
63°
13
84°
66°
14
95°
75°
15
96°
69°
16
95°
72°
17
93°
70°
18
90°
70°
19
93°
67°
20
88°
65°
21
78°
63°
22
79°
59°
23
78°
59°
24
79°
57°
25
78°
59°
26
81°
61°
27
83°
61°
28
78°
60°
29
81°
59°
30
79°
60°
1
79°
60°
2
80°
59°
3
81°
57°
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 78° to 96°, with overnight lows between 57° and 75°. The average high for September is 84° 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 Lincoln. See also: October | November | December.
