National Weather Service United States Department of Commerce

A series of weather systems will bring periodic showers and thunderstorms to central and southeast Illinois this work week. A warm front will advance north later today and this evening, bringing increasing chances of rain. Afternoon rain chances will be mainly north of I-72. Rain will become likely tonight as low pressure tracks across central Illinois. A few thunderstorms will be possible as well. The next wave of storms is forecast for Wednesday afternoon and evening, then again Friday. A very warm day is expected on Thursday, when highs reach around 80 across the area. Another sharp cool-down will occur on Friday with falling temperatures through the day.