August in Cheyenne averages a daily high of 28.1°C with nights around 12.4°C. Expect roughly 9.9 wet days totalling 39.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cheyenne is June.
Based on CHEYENNE WSFO AIRPORT, WY US (1.8km), 1995–2024. 30 years of August data.