In June, Iowa City typically sees daytime highs of 27.4°C and overnight lows around 15.0°C. Compared to the annual average high of 15.4°C, June runs +12.0°C.
June in Iowa City averages a daytime high of 27.4°C and an overnight low of 15.0°C.
June runs +12.0°C compared to Iowa City's annual average high of 15.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.4°C and cooler evenings around 15.0°C.