Unseasonably low temperatures are forecast to stick around the Chicago area through at least next week, possibly bringing snow by the end of the weekend, meteorologists said.
Temperatures Friday are not expected to surpass the low-20s across the northeastern part of Illinois, as the cold front that moved in following a warm Wednesday will keep thermometer readings plummeting, according to the National Weather Service.
Wind chills Friday night could make it feel like 10 degrees, National Weather Service meteorologist Richard Castro said.
Saturday is slated to be even colder, Castro said, with temperatures topping out in the upper teens, and wind chills dropping as low as 15 degrees below zero overnight in some parts of the Chicago area.
Some lake-effect snow accumulations of 1 to 3 inches are possible in northern Cook County and Lake County from Saturday night to Sunday morning, Castro said.
A separate snow system from the west could hit the area late Sunday and into the Monday morning commute, with accumulations of up to 3 inches possible in areas north of Interstate 88, meteorologists said.
Lakes and ponds are expected to freeze over in most parts of the area, as temperatures are expected to stay in the lower 20s at least through the end of next week, well below seasonal averages in the upper 30s.