July in Chattanooga averages a daily high of 28.4°C with nights around 20°C. Expect roughly 11.4 wet days totalling 115.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chattanooga is April–June.
Based on LOOKOUT MTN POINT PARK, TN US (5.1km), 1995–2024. 25 years of July data.