August in Dearborn averages a daily high of 28.2°C with nights around 17.3°C. Expect roughly 9.7 wet days totalling 100.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Dearborn is May–June.
Based on DEARBORN NUMBER 2, MI US (2.7km), 1995–2024. 17 years of August data.