The National Weather Service issued a frost advisory Sunday for several counties in Pennsylvania, New Jersey and Delaware.
According to the NWS, temperatures are expected to drop into the mid 30s. The cold temperatures could damage or kill outdoor plants if left uncovered.
The advisory goes into effect at 3 a.m. Monday and expires at 8 a.m. As of 4 p.m. Sunday, the advisory included Berks, Bucks, Chester, New Castle, Burlington, Camden and Gloucester counties, among others.
You can see the full list of counties under the frost advisory on the weather alerts page of myfoxphilly.com.
Wednesday will be less humid but it remains warm all week long.
Tuesday (93/72): Clouds/Storm
Wednesday (88/74): Sun/Clouds
Thursday (89/67): Sunny/Hot