S
M
T
W
T
F
S
30
91°
64°
31
82°
67°
1
89°
67°
2
90°
66°
3
91°
69°
4
91°
67°
5
90°
62°
6
87°
57°
7
80°
57°
8
81°
61°
9
82°
64°
10
84°
61°
11
79°
56°
12
77°
58°
13
79°
62°
14
78°
59°
15
86°
53°
16
85°
52°
17
75°
52°
18
74°
53°
19
75°
52°
20
73°
51°
21
73°
51°
22
74°
52°
23
75°
51°
24
76°
53°
25
77°
58°
26
80°
57°
27
81°
57°
28
75°
56°
29
80°
48°
30
79°
50°
1
72°
51°
2
71°
46°
3
70°
52°
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 70° to 91°, with overnight lows between 46° and 69°. The average high for September is 80° with an average low of 57°. 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.
