This afternoon, thunderstorms will develop across parts of Illinois. These storms will move east during the day and by this evening we could see a few of these storms in the Tri-State. Some of these thunderstorms could be strong to severe producing damaging winds, large hail, heavy rain, lightning and even an isolated tornado. The potential for severe weather will continue in the overnight and into tomorrow. Cooler air will filter into the region early next week with highs back in the 70s.
FOX19 Meteorologist Catherine Bodak