Southern Cook County will likely be hit the hardest, with four to six inches of snow expected.
"A winter weather advisory for snow means that periods of snow will cause primarily travel difficulties," the NWS advisory reads. "Be prepared for snow-covered roads and limited visibilities, and use caution while driving."
Overnight lows will stay in the mid-20s Friday into Saturday. Saturday's high is 30 degrees, and the overnight low Saturday into Sunday will dip to 13.
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