July in Grand Forks averages a daily high of 27.4°C with nights around 15.3°C. Expect roughly 9.7 wet days totalling 85.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Grand Forks is May–September.
Based on GRAND FORKS UNIVERSITY NWS, ND US (4.8km), 1995–2024. 29 years of July data.