June in Decatur averages a daily high of 30.3°C with nights around 19.6°C. Expect roughly 9.4 wet days totalling 105.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Decatur is April–May.
Based on DECATUR 4 SE, AL US (5.6km), 1995–2024. 19 years of June data.