Crisp Weekend for Pennsylvania and New Jersey: Dry Days, Frost Risk Overnight

Jordan Whitfield

October 25, 2025

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Mount Holly, NJ — A cool, classic fall weekend is on tap for the Delaware Valley and surrounding communities, with sunshine, light winds, and a touch of overnight chill. The National Weather Service in Philadelphia/Mount Holly expects dry conditions to dominate, though colder nights could bring patchy frost to some inland spots.

Saturday will feel brisk, with highs reaching the upper 50s to near 60 across southern New Jersey and southeastern Pennsylvania. Farther north, including areas like Allentown and Reading, temperatures should hold in the low to mid-50s. Breezes will be light, and skies largely clear to partly cloudy.

By early Sunday, temperatures are forecast to slip into the mid-30s to lower 40s. In rural valleys and sheltered inland locations, those colder readings may be enough to produce pockets of frost. Sunday’s weather remains mainly dry, with intervals of sun and clouds and gentle winds.

Looking ahead, forecasters are watching a potential low-pressure system that could affect the region in the middle to latter part of next week. The setup may bring periods of rain and increasingly gusty winds, but the timing and track are still uncertain.

Residents should consider protecting sensitive outdoor plants during the chilly nights and keep an eye on updates from the US National Weather Service Philadelphia/Mount Holly as the midweek forecast evolves.

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