S
M
T
W
T
F
S
30
93°
75°
31
92°
74°
1
97°
73°
2
98°
69°
3
99°
74°
4
97°
72°
5
97°
72°
6
92°
72°
7
95°
77°
8
94°
72°
9
95°
68°
10
90°
68°
11
91°
69°
12
87°
68°
13
87°
62°
14
86°
63°
15
88°
61°
16
79°
56°
17
86°
64°
18
80°
57°
19
82°
61°
20
83°
61°
21
76°
60°
22
81°
59°
23
81°
60°
24
82°
59°
25
81°
55°
26
69°
47°
27
68°
48°
28
67°
46°
29
69°
51°
30
68°
46°
1
70°
55°
2
67°
50°
3
64°
45°
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 64° to 99°, with overnight lows between 45° and 77°. The average high for September is 82° with an average low of 61°. 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.
