Extreme Heat Watch

Locations Affected

Philadelphia, PA ∙ Trenton, NJ ∙ Camden, NJ ∙ Wilmington, DE ∙ New Brunswick, NJ ∙ Perth Amboy, NJ ∙ Ocean Gate, NJ ∙ Lamington, NJ ∙ Longwoods, MD ∙ Zarephath, NJ

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 245 PM EDT Mon Jul 13 2026 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...Dangerously hot conditions with heat index values up to 106 possible. * WHERE...In Delaware, New Castle County. In New Jersey, Mercer, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

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