September in Kenosha averages a daily high of 22.6°C with nights around 13.7°C. Expect roughly 8 wet days totalling 91.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kenosha is June–September.
Based on KENOSHA WWTP, WI US (2.7km), 1995–2024. 30 years of September data.