S
M
T
W
T
F
S
30
87°
61°
31
84°
63°
1
79°
65°
2
80°
56°
3
78°
58°
4
79°
65°
5
79°
65°
6
85°
66°
7
86°
58°
8
87°
56°
9
77°
61°
10
76°
62°
11
77°
54°
12
84°
62°
13
83°
60°
14
76°
51°
15
73°
51°
16
Hist. Avg.
79°
56°
17
Hist. Avg.
79°
56°
18
Hist. Avg.
79°
55°
19
Hist. Avg.
78°
55°
20
Hist. Avg.
78°
54°
21
Hist. Avg.
78°
54°
22
Hist. Avg.
77°
54°
23
Hist. Avg.
77°
53°
24
Hist. Avg.
76°
53°
25
Hist. Avg.
76°
52°
26
Hist. Avg.
75°
52°
27
Hist. Avg.
75°
52°
28
Hist. Avg.
74°
51°
29
Hist. Avg.
74°
51°
30
Hist. Avg.
74°
50°
1
Hist. Avg.
73°
50°
2
Hist. Avg.
73°
49°
3
Hist. Avg.
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Omaha
Omaha's September 2026 forecast shows daily high temperatures ranging from 73° to 87°, with overnight lows between 51° and 66°. The average high for September is 81° 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.