In April, Oak Lawn typically sees daytime highs of 15.7°C and overnight lows around 4.1°C. Compared to the annual average high of 15.2°C, April runs +0.4°C.
April in Oak Lawn averages a daytime high of 15.7°C and an overnight low of 4.1°C.
April runs +0.4°C compared to Oak Lawn's annual average high of 15.2°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 15.7°C and cooler evenings around 4.1°C.