August in Broken Arrow averages a daily high of 34.6°C with nights around 21.4°C. Expect roughly 7.6 wet days totalling 88.8mm. Demanding conditions — pack for it and plan indoor options.
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. 26 years of August data.