October in Decatur averages a daily high of 23°C with nights around 11.2°C. Expect roughly 5.8 wet days totalling 75.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Decatur is April–May.
Based on DECATUR 4 SE, AL US (5.6km), 1995–2024. 17 years of October data.