National Weather Service United States Department of Commerce

A strong weather system will move through the area with isolated thunderstorms this morning and again this afternoon. The morning round of storms in the north could produce small hail. The afternoon round of storms east of the Illinois river could produce damaging winds and isolated tornadoes.
Strong westerly winds will develop this evening and increase after midnight through Monday morning. Gusts of around 45 mph will be common across the area. Driving will be difficult for high profile vehicles, especially on north-south roads.