Chicago weather forecast hour by hour for September 19

• Bitter cold sticks around Monday, high temps stay below freezing

  

• Work week in North Texas starts out cold but a warmup is on the way

  

• It's going to be a very cold start to the week in the Pittsburgh area

  

• Washington state experiences devastating flooding, Midwest braces for arctic blast

  

• Here's how to stay safe on the roads as snow is forecast to hit Philadelphia

  

• Frigid air moves across North Texas Sunday ahead of mid-week warmup

  

• Chicagoans, visitors' brave cold for holiday festivities

  

• Chicago area Brown University students recall moments leading to deadly shooting