October in Lewisville averages a daily high of 26.3°C with nights around 12.6°C. Expect roughly 7.3 wet days totalling 110.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lewisville is March–April.
Based on GRAPEVINE DAM, TX US (12.1km), 1995–2024. 21 years of October data.