As the hot spell's persistence stokes health concerns, Philadelphia has reported the region's fifth heat-related death since late May.
A 70-year-old man with a history of heart disease was found dead Sunday in the second-floor bedroom of a Mount Airy home, said Health Department spokesman Jeff Moran. Fans were operating in the room and the windows were closed when the body was discovered.
The toll may rise, for the second heat wave of the season is about to gain a second, potentially dangerous, wind.
On the July Fourth holiday, the atmosphere will be holding a cookout of its own, with temperatures creeping back toward the mid-90s.