30 Day Long Range Weather for Chicago Illinois Weather The weather in Chicago Heights are changeable at times. Weather conditions can vary from extreme heatwaves in the summer to extremely cold winters that include heavy snowfall. It's consistently important to be prepared to face any climate conditions in Chicago Heights. Stay updated about the
weather prediction in order to plan your activities appropriately and attire appropriately. Keep safe and make the most of the varied weather experiences that Chicago Heights has to offer.
