CHICAGO (WLS) -- An artic blast is bringing dangerous sub-zero wind chills to the Chicago area, and temperatures will drop even more on Saturday night.

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ABC7 Chicago meteorologists have issued an AccuWeather Alert for the weekend's bitter cold.

The National Weather Service has issued a Cold Weather Advisory for Boone, Cook, DeKalb, DuPage, Will, Grundy, Kane, Kankakee, Kendall, LaSalle, Lake (Ill.), Livingston, McHenry, Winnebago, Jasper, Lake (Ind.) and Newton counties from 8 p.m. Saturday to noon Sunday.

A Cold Weather Advisory is also impacting Wisconsin's Waukesha County from midnight Saturday to 10 a.m. Sunday.

A Winter Weather Advisory has been issued for Grundy, Kankakee, LaSalle, Livingston, Jasper and Newton coun

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