Weather Shift Ahead For Eastern PA, Freeze Warning Issued

PHILADELPHIA, PA —The coldest temperatures of the fall season are headed our way.

A freeze warning is in effect for the Philadelphia region starting at midnight and going through 9 a.m. Wednesday.

Sub-freezing temperatures as low as 29 are expected, according to the National Weather Service.

The freeze warning is in place for portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania.

"Freeze conditions will kill crops and other sensitive vegetation," the Weather Service said. "This will likely bring an end to the growing season.

Forecasters have warned we could be in for a cold start to November.

The latest predictions from meteorologists at AccuWeather lay out two potential possibilities for later this week into early next week. Under one of the scenarios, a rainy storm front coming from the southeast could intensify as it drives north, potentially turning to snow by the time it reaches Pennsylvania.

"The potential for snowfall in this scenario would begin to unfold perhaps as far south as the Blue Ridge Mountains Thursday night into Friday," AccuWeather says. "The odds for any accumulating snow would likely reside farther north, however, into areas such as western Virginia, West Virginia and perhaps Pennsylvania to close out the week. The potential for the first flakes of the season could also extend into the Poconos and Catskills this weekend if the storm comes to fruition."

Under a second potential scenario, this same storm front would move slowly, not intensify, and leave the northeast region dry and cold to close out the week.

Here is the current forecast:

Today: A chance of light rain, mainly after noon. Cloudy, with a high near 53. West wind 5 to 10 mph. Chance of precipitation is 40 percent. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Patchy frost after 4 a.m. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind around 5 mph becoming calm.

Wednesday: Patchy frost before 9 a.m. Otherwise, sunny, with a high near 52. Northwest wind 5 to 10 mph.

Wednesday night: Areas of frost after 3 a.m. Otherwise, partly cloudy, with a low around 34. Calm wind becoming north around 5 mph.

Thursday: Areas of frost before 9 a.m. Otherwise, partly sunny, with a high near 52. Northeast wind around 5 mph.

Thursday night: A slight chance of rain before 2am. Mostly cloudy, with a low around 35. Chance of precipitation is 20 percent.