November in Nampa averages a daily high of 9.8°C with nights around 0.2°C. Expect roughly 9.5 wet days totalling 30.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Nampa is June.
Based on BOISE AIR TERMINAL, ID US (26.2km), 1995–2024. 30 years of November data.