Norma
Frost could kill uncovered plants in Camden, Gloucester, Lower Bucks and five other counties from midnight to 8 a.m. Sunday, with lows as low as 34.
Lake Erie and higher elevations face different early-winter conditions than Philadelphia and the southeast.
Overnight, skies will be mostly clear, with a seasonable chill. Lows in the middle 40's, in the city, some upper 30's in the coldest suburbs. Halloween is looking very nice! Expect highs in the lower 60's, with sunny skies. By early evening, temperatures are in the upper 50's for trick or treaters.
Costumes may need an extra layer this Halloween across the Philadelphia region as seasonably cool autumn air settles in for the weekend. Following a mild stretch earlier in the week, daytime highs will peak in the low 60s under light winds, making for ideal conditions to keep outdoor Halloween inflatables secure. For trick-or-treaters heading out after sunset at 5:59 p.m., temperatures will drop steadily through the 50s and into the 40s. Overnight, thermometers will dip into the 30s across interior areas, bringing a chance of patchy morning frost to communities north and west of the city and parts of the South Jersey Pine Barrens. Don't forget to turn clocks back one hour before bed as daylight saving time comes to an end.
Thursday night was mostly clear and mild with overnight lows falling into the low to mid 50s. Friday will be warmer than Thursday with highs about 10-15° above average with abundant sunshine. Then, a cold front arrives in the afternoon to bring breezy northwest winds and cooler yet more seasonable air for the Halloween weekend.
You can leave the jacket at home on Friday. You won't need it.
High clouds will slide off shore to allow for a mostly clear night. Lower temperatures with a southwest breeze will also provide the ability for patchy for to develop after midnight. Some of the fog will be dense for the morning commute but will evaporate around 10 a.m. Otherwise, Thursday...
PENNSYLVANIA — The 2026-27 winter outlook for Pennsylvania is shaped by a strong El Niño, one of the strongest on record for this time of year. The pattern is expected to influence nearly every part of the season, from snowfall and temperatures to heating bills and ski conditions. A review of every strong El Niño winter since 1957 points to the heaviest snow in the northwest and the Laurel Highlands, with lighter totals across the southeast.
Wednesday stays completely dry in the Philadelphia region, so you can leave the umbrella at home. By the evening, it will be a great night for a walk.
Philadelphia, South Jersey and the Delaware Valley can expect dry skies and milder afternoons.
Skies are clear and we're off to a chillier start on Wednesday morning, running 5 to 10 degrees colder than Tuesday with temperatures in the 30s and 40s across the area. A nice warm-up is on the way with plenty of sunshine on Wednesday morning, then increasing clouds during the afternoon from a weak disturbance that passes through completely dry.
High pressure will keep the Philadelphia region dry through much of the week, with a gradual warmup as milder air moves in and a cold front passes through Monday night. Tuesday stays dry with a mix of sunshine and a few clouds, with highs near 66 degrees as temperatures remain above normal for late October.
Tuesday will be a slightly warmer start to the day in the Philadelphia region, with high temperatures reaching the mid-60s.
Frost threatens sensitive plants across Pennsylvania, Delaware and Maryland before temperatures rebound.
Sunshine dominates the week as clocks turn back November 1 and earlier sunsets return.
Nothing but sunshine on Monday as we easily warm into the low 70s in the afternoon. Skies stay clear for the Eagles on Monday night with perfect football weather at kickoff, 60° with clear skies and light winds, dropping to the mid-50s by the end of the game. A...
Philadelphia's November 2025 records reveal an unusual snowfall observation ahead of winter.