September in Carrollton averages a daily high of 32.1°C with nights around 20.8°C. Expect roughly 5 wet days totalling 61.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Carrollton is March–April.
Based on DAL FTW WSCMO AIRPORT, TX US (13.8km), 1995–2024. 30 years of September data.