Philadelphia, PA – Nearly 10 million residents across Pennsylvania, New Jersey, and Delaware will sweat through a two-day heat advisory as dangerous heat and humidity settle over the region, pushing heat index values up to 99 degrees through 8 p.m. Thursday.
According to the National Weather Service in Mount Holly, the advisory covers Philadelphia, New Castle County in Delaware, and much of South and Central Jersey, including Camden, Trenton, and Mount Holly. It begins at 11 a.m. Wednesday and remains in effect until 8 p.m. Thursday, with peak heat expected mid-afternoon each day.
The high heat and oppressive humidity may lead to heat-related illnesses, especially for vulnerable populations. Officials urge residents to stay hydrated, avoid prolonged sun exposure, and limit outdoor activity to early morning or evening hours.
In Philadelphia and Camden, cooling centers are expected to open Wednesday morning. Residents are encouraged to check with local governments or call 3-1-1 for locations.
Transit delays and air quality issues may also arise, especially in dense urban areas like Norristown, Doylestown, and Wilmington. Schools with outdoor programs are advised to adjust schedules or move activities indoors.
The advisory could be extended if hot conditions persist beyond Thursday. Stay tuned to local alerts and limit non-essential travel during peak afternoon heat.
