* WHAT...Heat index values up to 103 degrees expected. * WHERE...Morris, Sussex, Warren, and Hunterdon Counties. * WHEN...From 10 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
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 · Wednesday, July 15, 2026
7 AM – 6 PM
Patchy smoke between 10am and noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 99. Heat index values as high as 105. West wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
6 PM – 6 AM
Areas of smoke and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 73, with temperatures rising to around 75 overnight. Heat index values as high as 101. Northwest wind 3 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.