September in Bossier City averages a daily high of 31.7°C with nights around 19.9°C. Expect roughly 6.8 wet days totalling 78.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bossier City is March–April.
Based on SHREVEPORT DOWNTOWN AIRPORT, LA US (2.9km), 1995–2024. 28 years of September data.