Massive heat wave forces Philadelphia to cancel July 4 festivities

FOX Weather correspondent Katie Byrne reports from Philadelphia on the extreme heat and its impact on July 4 celebrations, with temperatures nearing 112 degrees.

A massive heat wave scorched the U.S. during the July 4 holiday, causing Philadelphia to cancel its annual parade due to extreme temperatures. FOX Weather correspondent Katie Byrne reports from Philadelphia, detailing the severe conditions, including a felt temperature of 112 degrees. Over 150 million Americans are under heat alerts as people seek relief indoors.