Heat Wave Blankets U.S. From The Midwest To The Northeast

A heat wave is stretching from the Midwest to the Northeast on Friday and through the weekend. The heat index will reach over 100 degrees in Dallas, Chicago, Washington, D.C, and Boston. Here & Now's Eric Westervelt (@Ericnpr) speaks with Mark Elliot (@twcMarkElliot), a meteorologist with The Weather Channel.