September in Lansing averages a daily high of 23.4°C with nights around 11°C. Expect roughly 9.5 wet days totalling 66.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lansing is May–September.
Based on LANSING CAPITAL CITY AIRPORT, MI US (6km), 1995–2024. 30 years of September data.