In April, Waukegan typically sees daytime highs of 12.7°C and overnight lows around 2.8°C. Compared to the annual average high of 13.5°C, April runs -0.8°C.
April in Waukegan averages a daytime high of 12.7°C and an overnight low of 2.8°C.
April runs -0.8°C compared to Waukegan's annual average high of 13.5°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 12.7°C and cooler evenings around 2.8°C.