September in Broken Arrow averages a daily high of 30.3°C with nights around 16.9°C. Expect roughly 7.4 wet days totalling 83.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Broken Arrow is March–May.
Based on TULSA RICHARD L JONES JR AIRPORT, OK US (18km), 1995–2024. 27 years of September data.