S
M
T
W
T
F
S
30
77°
57°
31
79°
57°
1
79°
56°
2
78°
56°
3
78°
49°
4
74°
48°
5
69°
53°
6
70°
55°
7
73°
55°
8
76°
53°
9
77°
54°
10
76°
52°
11
74°
51°
12
75°
52°
13
75°
53°
14
74°
54°
15
75°
52°
16
74°
45°
17
70°
51°
18
69°
50°
19
72°
47°
20
67°
45°
21
64°
42°
22
63°
47°
23
64°
46°
24
65°
42°
25
62°
42°
26
62°
40°
27
61°
47°
28
68°
41°
29
66°
39°
30
61°
38°
1
60°
41°
2
60°
37°
3
59°
38°
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 59° to 79°, with overnight lows between 37° and 57°. The average high for September is 70° with an average low of 48°. 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.
