June in Pontiac averages a daily high of 26.3°C with nights around 14.9°C. Expect roughly 10.7 wet days totalling 86.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Pontiac is May–September.
Based on PONTIAC WWTP, MI US (2.9km), 1995–2024. 14 years of June data.