September in Abilene averages a daily high of 31.4°C with nights around 18.5°C. Expect roughly 5.8 wet days totalling 66.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Abilene is March–April.
Based on ABILENE REGIONAL AIRPORT, TX US (6.4km), 1995–2024. 30 years of September data.