April in Chattanooga averages a daily high of 19.6°C with nights around 9°C. Expect roughly 10.5 wet days totalling 131mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Chattanooga is April–June.
Based on LOOKOUT MTN POINT PARK, TN US (5.1km), 1995–2024. 28 years of April data.