S
M
T
W
T
F
S
30
90°
68°
31
89°
67°
1
89°
65°
2
88°
59°
3
81°
59°
4
82°
65°
5
87°
66°
6
86°
64°
7
87°
65°
8
86°
66°
9
85°
65°
10
86°
64°
11
84°
59°
12
79°
58°
13
78°
62°
14
81°
63°
15
78°
63°
16
78°
62°
17
79°
62°
18
76°
54°
19
75°
53°
20
74°
54°
21
74°
54°
22
75°
60°
23
78°
61°
24
80°
62°
25
81°
59°
26
80°
54°
27
73°
56°
28
72°
53°
29
72°
53°
30
72°
59°
1
71°
53°
2
72°
56°
3
Hist. Avg.
74°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Omaha
Omaha's September 2026 forecast shows daily high temperatures ranging from 71° to 90°, with overnight lows between 53° and 68°. The average high for September is 80° with an average low of 60°. 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 Omaha. See also: October | November | December.
