The last time Chicago had subzero temperatures this early in the season was Dec. 9, 1995. Unfortunately for Chicagoans, it won’t
be long before the mercury is back below zero.
Though temperatures will get into the low 20s on Tuesday, Chicago could see subzero temperatures again Wednesday night. Before that, Chicago likely will get more snow.
A winter weather advisory has been issued for the Chicago area from midnight Tuesday night through 10 a.m. Wednesday morning.
The snow will begin sometime in the early hours of Wednesday morning, with the heaviest snowfall likely between 5 a.m. and 8 a.m. in the Chicago area, according to the National Weather Service. A total of 2 to 4 inches are expected.
Wednesday night, temperatures could again drop to zero or below.
The frigid temperatures make it especially dangerous for drivers, as road salt loses its effectiveness when temperatures dip below zero.
That means drivers have to be concerned roads are slicker than they appear. With up to four inches of snow in the forecast for Wednesday morning, roads could be very dangerous Wednesday night, when the temperature could get as low as four below zero.