September in Minneapolis averages a daily high of 23.5°C with nights around 12.6°C. Expect roughly 8.6 wet days totalling 76.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Minneapolis is May–June.
Based on LOWER ST. ANTHONY FALLS, MN US (1.3km), 1995–2024. 29 years of September data.