Philadelphia, PA – Muggy summer-like warmth makes a return Thursday as highs soar into the upper 80s across much of eastern Pennsylvania, New Jersey, and northern Delaware, with pockets near 90°F expected around Allentown and Trenton.
According to the National Weather Service in Mount Holly, overnight lows will dip into the low to mid-60s under mostly clear skies, but rising humidity and patchy cloud cover will settle in by morning. Daytime highs Thursday will push into the mid to upper 80s across most inland areas, while coastal spots like Cape May and Atlantic City will hover closer to the mid-70s.
Expect partly to mostly cloudy skies and light southwest winds at 5–10 mph. Residents in the Poconos should be aware of a slight chance of a stray shower during the afternoon.
With increased humidity and heat, those spending time outdoors should stay hydrated and avoid strenuous activity during peak sun hours. This pattern marks a noticeable warm-up compared to earlier in the week.
Warm, humid conditions are expected to persist into the weekend, with additional updates likely as storm chances increase Friday into Saturday.
