* WHAT...Heat index values up to 100 degrees expected. * WHERE...In New Jersey, Morris and Hunterdon Counties. In Pennsylvania, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...Until 8 PM EDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Warm and very humid conditions at night will not offer much relief from the heat and humidity.
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.
AI Weather Forecast · Friday, August 7, 2026
7 AM – 6 PM
Patchy fog before 8am, then a chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly sunny. High near 90, with temperatures falling to around 88 in the afternoon. Heat index values as high as 98. West wind 1 to 8 mph. Chance of precipitation is 40%.
6 PM – 6 AM
Showers and thunderstorms likely before midnight, then patchy fog and a chance of showers and thunderstorms between midnight and 2am, then patchy fog and a slight chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 73. Southwest wind 2 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.