About North Chicago, IL

North Chicago, in Illinois, United States, is home to roughly 29,500 people in the Central Time Zone at 42.3°N latitude.

North Chicago has a humid continental climate. Average annual temperature is 48°F, with January lows around 16°F and July highs near 81°F. The city averages 35 inches of precipitation per year. The wettest month is typically June; the driest is January.