Drexel University

Bode Layo,9, of Portage, Pa., floats in the pool at Crichton-McCormick Park in Portage, Pa., Tues., July 16, 2013.  Hot weather is expected through the weekend.  (AP Photo/Tribune-Democrat, John Rucosky)

PHOTO GALLERY: 5 things to know about the US heat wave

PHILADELPHIA (AP) — The first big heat wave of the summer is here, bearing down on all parts of the U.S., following temperatures that blistered the West Coast in June. Typically heat waves occur twice […]

07/16/2013