Record cold to break—but in stages; Thursday night snow a product of milder Pacific air overrunning the retreating arctic air—a record 79-degree five-day temp increase to take Chicago highs into the 50s by Monday

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.
Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.