June in Knoxville averages a daily high of 29.7°C with nights around 17.2°C. Expect roughly 10.1 wet days totalling 104.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Knoxville is April–May.
Based on KNOXVILLE EXPERIMENTAL STATION, TN US (7.7km), 1995–2024. 29 years of June data.