Northwest Pa. under a frost advisory Monday — temperatures as low as 34
The National Weather Service warns frost is possible between midnight and 8 a.m. Monday in five northwest Pennsylvania counties as temperatures fall to about 34 degrees.
The National Weather Service released a frost advisory at 1:20 p.m. on Sunday valid for Monday between midnight and 8 a.m. for Mercer, Venango, Forest, Clarion and Jefferson counties.
The weather service informs, "Temperatures as low as 34 degrees will result in frost formation."