Extreme Heat Watch

Locations Affected

Philadelphia, PA ∙ Allentown, PA ∙ Trenton, NJ ∙ Reading, PA ∙ Bethlehem, PA ∙ Camden, NJ ∙ Wilmington, DE ∙ New Brunswick, NJ ∙ Perth Amboy, NJ ∙ Three Bridges, NJ

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 212 AM EDT Fri Jun 20 2025 ...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...Dangerously hot conditions with heat index values up to 107 possible. * WHERE...Portions of east central and southeast Pennsylvania. * WHEN...From Monday morning through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Low temperatures will hover near 80 degrees in urban areas. Heat will have a cumulative effect on the body as the week goes on as little relief will come overnight. 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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