In April, Chicago typically sees daytime highs of 13.8°C and overnight lows around 4.1°C. Compared to the annual average high of 14.1°C, April runs -0.3°C.
April in Chicago averages a daytime high of 13.8°C and an overnight low of 4.1°C.
April runs -0.3°C compared to Chicago's annual average high of 14.1°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 13.8°C and cooler evenings around 4.1°C.