May in Huntsville averages a daily high of 27.6°C with nights around 15.5°C. Expect roughly 10 wet days totalling 113.7mm. Comfortable conditions for being outdoors all day.
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 May data.