* WHAT...Heat index values up to 101 degrees expected. * WHERE...Portions of northern and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Conditions will turn much less humid this weekend in the wake of a cold front tonight, however high temperatures will remain in the mid 80s to near 90 degrees.
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.
AI Weather Forecast · Friday, June 12, 2026
7 AM – 6 PM
Showers and thunderstorms likely after 1pm. Some of the storms could be severe. Mostly sunny. High near 96, with temperatures falling to around 93 in the afternoon. Heat index values as high as 101. West wind 6 to 12 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
6 PM – 6 AM
A chance of showers and thunderstorms before 10pm. Some of the storms could be severe. Mostly cloudy, with a low around 66. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.