Extreme Heat Warning
until WED 8:00 PM EDT, Lehigh County, Upper Bucks County, Lower Bucks County, Northampton County, Western Chester County, Delaware County, Eastern Chester County, Philadelphia County, Berks County, Western Montgomery County, Eastern Montgomery County, Lebanon County, Lancaster County, Somerset County, Southeastern Burlington County, Ocean County, Camden County, Warren County, Mercer County, Gloucester County, Northwestern Burlington County, Hunterdon County, New Castle County