June in Johnson City averages a daily high of 28.4°C with nights around 15.9°C. Expect roughly 13 wet days totalling 120.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Johnson City is April–May.
Based on ELIZABETHTON, TN US (10.4km), 1995–2024. 29 years of June data.