Frost advisory in effect for Southeast Pa. until Sunday morning
National Weather Service warns frost formation overnight as temperatures could fall to 32°F.
At 12:42 p.m. on Saturday, the National Weather Service issued a frost advisory valid from 11 p.m. until Sunday 9 a.m. for Western Chester and Western Montgomery as well as Berks, Lehigh, Northampton and Bucks counties.
The weather service informs, "Temperatures as low as 32 degrees will result in frost formation."