August in Fargo averages a daily high of 27.2°C with nights around 14.2°C. Expect roughly 8.4 wet days totalling 69.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Fargo is May–September.
Based on FARGO HECTOR INTERNATIONAL AIRPORT, ND US (5.5km), 1995–2024. 30 years of August data.