The National Weather Service has issued a Freeze Warning for Berks County, Western Chester County and Western Montgomery County from midnight Sunday to 9am Monday.
Sub-freezing temperatures as low as 30 expected.
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Frost and freeze conditions will kill crops and other sensitive vegetation. Take steps now to protect tender plants from the cold.