New Jersey, Pennsylvania Moderate Heat Advisory | Effective 07/04/2026 19:52

Headline: 
Heat Advisory issued July 4 at 10:52PM EDT until July 5 at 8:00PM EDT by NWS Mount Holly NJ
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
July 4, 2026 - 7:52pm
Expires: 
July 5, 2026 - 9:00am
Description: 
* WHAT...Heat index values of 95 to 100 expected. * WHERE...Northern and Northwest New Jersey and much of Eastern Pennsylvania. * WHEN...From 8 AM to 8 PM EDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Area Description: 
Warren; Morris; Hunterdon; Somerset; Middlesex; Mercer; Berks; Lehigh; Northampton; Delaware; Philadelphia; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
Forcast Office: 
NWS Mount Holly NJ