August in Huntsville averages a daily high of 32.4°C with nights around 20.8°C. Expect roughly 9.4 wet days totalling 88.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Huntsville is April–May.
Based on HUNTSVILLE INTNL AIRPORT, AL US (20.7km), 1995–2024. 30 years of August data.