In April, West Allis typically sees daytime highs of 13.0°C and overnight lows around 2.0°C. Compared to the annual average high of 12.9°C, April runs +0.2°C.
April in West Allis averages a daytime high of 13.0°C and an overnight low of 2.0°C.
April runs +0.2°C compared to West Allis's annual average high of 12.9°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 13.0°C and cooler evenings around 2.0°C.