Freeze warning in effect for five Southwest Pa. counties until Tuesday morning
National Weather Service warns of sub-freezing overnight temperatures across five Southwest Pennsylvania counties.
On Monday at 12:48 a.m. the National Weather Service issued a freeze warning valid from 11 p.m. until Tuesday 9 a.m. for Allegheny, Washington, Greene, Westmoreland and Fayette counties.
The weather service informs, "Sub-freezing temperatures in the mid 20s to near 30 expected."