In August, Nampa typically sees daytime highs of 31.8°C and overnight lows around 12.6°C. Compared to the annual average high of 18.2°C, August runs +13.6°C.
August in Nampa averages a daytime high of 31.8°C and an overnight low of 12.6°C.
August runs +13.6°C compared to Nampa's annual average high of 18.2°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 31.8°C and cooler evenings around 12.6°C.