Windchill Advisory from 6:00 pm Tonight to 12:00 Friday for Chicago and NWI
A strong cold front will usher in arctic air on gusty west winds tonight. The combination of the cold air and wind will result in wind chills of -20 to -30F overnight into Friday morning. At these wind chills, frostbite can occur on exposed skin in as little as 30 minutes. Take extra precaution if you must be outside tonight and Friday morning by wearing proper clothing, including a hat and gloves.