August in Frisco averages a daily high of 35.4°C with nights around 24.5°C. Expect roughly 5.2 wet days totalling 59.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Frisco is March–April.
Based on RICHARDSON, TX US (18.7km), 1995–2024. 19 years of August data.