June in Grand Forks averages a daily high of 25°C with nights around 13°C. Expect roughly 12.1 wet days totalling 99.8mm. 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 June data.