National Weather Service United States Department of Commerce

Areas of dense fog will reduce visibilities to near zero at times this evening. Due to the patchy nature of the fog, motorists should be prepared to encounter sudden and drastic reductions in visibility. Fog is expected to dissipate late this evening.
Lingering fog is expected north of I-88 with a chance for some light rain tonight. Rain is expected Fri & Fri night. It’ll remain cloudy on Sat, but temps will be unseasonably mild. There could be some rain Sun, mainly southeast of I-55, dry elsewhere & mild.