September in Kansas City averages a daily high of 27.4°C with nights around 16.4°C. Expect roughly 6.8 wet days totalling 81.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kansas City is April–May.
Based on KANSAS CITY DOWNTOWN AIRPORT, MO US (3.6km), 1995–2024. 30 years of September data.