In August, West Allis typically sees daytime highs of 26.2°C and overnight lows around 15.0°C. Compared to the annual average high of 12.9°C, August runs +13.4°C.
August in West Allis averages a daytime high of 26.2°C and an overnight low of 15.0°C.
August runs +13.4°C compared to West Allis's annual average high of 12.9°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 26.2°C and cooler evenings around 15.0°C.