* WHAT...Heat index values of 95 to 100 expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...From 8 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Temperatures and heat indices will not be quite as high today as they have been the past couple days. However impacts are still expected especially given the long duration of high temperatures 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.
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset, Sussex, Warren and Western Monmouth, and Pennsylvania, including the following areas, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 2 PM EDT this afternoon through Monday evening. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of heavy showers and thunderstorms are expected to impact the area this afternoon through Monday. Rain amounts of over 2 inches in an hour will be possible leading to areas of flash flooding. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Sunday for North Central New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
AI Weather Forecast · Sunday, July 5, 2026
7 AM – 6 PM
A chance of showers and thunderstorms between 1pm and 5pm, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy. High near 85, with temperatures falling to around 81 in the afternoon. East wind 1 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
6 PM – 6 AM
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 68. East wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.