S
M
T
W
T
F
S
30
66°
44°
31
77°
35°
1
86°
39°
2
66°
42°
3
69°
39°
4
70°
46°
5
69°
45°
6
72°
48°
7
59°
41°
8
65°
41°
9
75°
41°
10
77°
43°
11
78°
39°
12
67°
38°
13
70°
41°
14
73°
43°
15
72°
42°
16
67°
40°
17
70°
35°
18
68°
35°
19
59°
29°
20
61°
39°
21
61°
37°
22
65°
40°
23
69°
35°
24
59°
30°
25
56°
27°
26
58°
30°
27
62°
34°
28
69°
35°
29
68°
36°
30
69°
38°
1
65°
36°
2
67°
38°
3
68°
37°
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 56° to 78°, with overnight lows between 27° and 48°. The average high for September is 67° with an average low of 38°. 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.
