February in Nampa averages a daily high of 7.7°C with nights around -1.8°C. Expect roughly 8.9 wet days totalling 26.3mm. 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 February data.