S
M
T
W
T
F
S
30
83°
63°
31
85°
63°
1
84°
59°
2
82°
61°
3
79°
57°
4
77°
56°
5
75°
56°
6
76°
57°
7
80°
54°
8
79°
52°
9
76°
58°
10
75°
59°
11
81°
58°
12
80°
57°
13
80°
56°
14
81°
57°
15
81°
58°
16
72°
51°
17
71°
56°
18
Hist. Avg.
74°
53°
19
Hist. Avg.
74°
52°
20
Hist. Avg.
73°
52°
21
Hist. Avg.
73°
51°
22
Hist. Avg.
72°
51°
23
Hist. Avg.
72°
50°
24
Hist. Avg.
72°
50°
25
Hist. Avg.
71°
50°
26
Hist. Avg.
71°
49°
27
Hist. Avg.
70°
49°
28
Hist. Avg.
70°
48°
29
Hist. Avg.
70°
48°
30
Hist. Avg.
69°
47°
1
Hist. Avg.
69°
47°
2
Hist. Avg.
68°
47°
3
Hist. Avg.
68°
46°
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 71° to 85°, with overnight lows between 51° and 63°. The average high for September is 79° 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 Omaha. See also: October | November | December.