Chicago Heights Illinois Long Range Weather ForecastThe climate for Chicago Heights are unpredictable occasionally. Weather conditions can vary from hazardous heatwaves in the summer to bitterly cold winters with significant snowfall. It is constantly essential being ready to face a variety of climate conditions within Chicago Heights. Remain updated about the weather prediction in order to plan your activities accordingly and dress appropriately. Stay safe and make the most of the diverse weather experiences that are Chicago Heights has to offer.