September in Jonesboro averages a daily high of 29°C with nights around 16.3°C. Expect roughly 6.5 wet days totalling 87.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Jonesboro is April–May.
Based on JONESBORO 3 SSE, AR US (4.9km), 1995–2024. 27 years of September data.