October in Pontiac averages a daily high of 16.6°C with nights around 6.4°C. Expect roughly 12.4 wet days totalling 69.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Pontiac is May–September.
Based on PONTIAC WWTP, MI US (2.9km), 1995–2024. 13 years of October data.