October in Flint averages a daily high of 16.3°C with nights around 5.1°C. Expect roughly 12.4 wet days totalling 72mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Flint is May–September.
Based on FLINT FCWOS, MI US (7.2km), 1995–2024. 30 years of October data.