September in Omaha averages a daily high of 26.3°C with nights around 13.3°C. Expect roughly 7.5 wet days totalling 67.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Omaha is September–October.
Based on OMAHA EPPLEY AIRFIELD, NE US (7km), 1995–2024. 30 years of September data.