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The National Weather Service issued a Sunday freeze warning for these Pa. counties

Upper Bucks, western Montgomery, and western Chester Counties could see temperatures as low as 31 degrees Fahrenheit Sunday, forecasters said.

Commuters on the first morning workday of the month are greeted with ice crystals on vehicle windshields Monday, Dec. 2, 2024, with sub-freezing temperatures in the Philadelphia region. The National Weater Service has issued a freeze warning for Sunday morning.
Commuters on the first morning workday of the month are greeted with ice crystals on vehicle windshields Monday, Dec. 2, 2024, with sub-freezing temperatures in the Philadelphia region. The National Weater Service has issued a freeze warning for Sunday morning. Read moreTom Gralish / Staff Photographer

The National Weather Service issued a freeze warning for the early morning hours of Sunday between 1 a.m. and 9 a.m. for parts of the Philadelphia region.

Upper Bucks, western Montgomery and western Chester Counties, could see temperatures reach as low as 31 degrees Fahrenheit.

The freeze warning, which was issued on Saturday, is concentrated in the Lehigh Valley, adjacent areas of northern New Jersey and the Poconos, said Zack Cooper, meteorologist with the National Weather Service in Mount Holly.

In the areas expecting subfreezing temperatures, “there could be some frost development,” said Cooper, though he added that it’s not expected to be too widespread.

“Where the growing season is still active, [it] will represent an end to that if it does fall below freezing,” he said.

Philadelphia was under a severe thunderstorm watch on Friday and temperatures in the coming workweek could reach no more than the mid 60s during the day and be in the 40s in the evenings.

    Ariana Perez-Castells
    I write stories about the workplace as well as all things related to business in Philly and the region.