Mercer County

Heat Advisory issued September 1 at 2:30AM EDT until September 1 at 8:00PM EDT by NWS Mount Holly NJ

* WHAT...Heat index values up to 100 degrees expected. * WHERE...In Delaware, New Castle County. In New Jersey, Mercer, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. * WHEN...From noon today to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.