This is all due to an early season arctic blast of cold air descending from Canada south eventually impacting most of the eastern half of the country. This cold air mass will stay over the east through Tuesday. Morning temperatures will eventually warm up Wednesday morning and afternoon highs warm up Wednesday and Thursday.

Get set for the snow to roll in late Saturday night. We will be in Weather Alert mode as snow showers begin to move in. Winter weather advisories begin late Saturday and go through Sunday morning. This will be a 2 out of 5 on our Weather Impact Scale as most of the snow falls while we're sleeping.

FIRST ALERT WEATHER DAY- TONIGHT THROUGH MONDAY A.M.

A NEXT Weather Alert is in effect Saturday as another storm system passes through the area. The system brought snow late Saturday morning and changed to sleet and rain by the early evening. By late this evening, the warm front is north of us, and all ...

A cold weather advisory is now in effect for the Chicago area until noon Sunday, with wind chills of -25 to -30 below possible by morning. By the midday hours on Sunday, wind chills will range between 0 degrees and 10 degrees below.

Chicago is bracing for extreme cold this weekend, and whether you plan to be outside or staying indoors, experts say taking time to prepare is essential.