Temperatures dipped to one degree below zero in the Chicago area overnight for the first time this early in the winter season since Dec. 9, 1995.
The temperature at O’Hare International Airport hit the 18-year low around 12:55 a.m. Tuesday, National Weather Service meteorologist Gino Izzi said.
It is expected to warm up to the teens throughout the day Tuesday but will be windy, with the wind chill capping at zero degrees, Izzi said.
About two to four of inches of snowfall is expected Wednesday morning “in the heart of rush hour,” Izzi said. Temperatures will “free fall” in the afternoon, hitting below zero Wednesday night.
Wind chills Wednesday night are expected to dip to 25 degrees below zero, according to the weather service.
Thursday will have a high in the teens, while temperatures Friday are expected to be in the 20’s, Izzi said. Snow may fall Friday and Saturday, but the storm front could miss the Chicago area, he said.