August in Rochester averages a daily high of 25.7°C with nights around 14.9°C. Expect roughly 10.3 wet days totalling 105.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Rochester is June–September.
Based on ROCHESTER INTERNATIONAL AIRPORT, MN US (13.2km), 1995–2024. 30 years of August data.