Weather
Appalachian Region Frost Alert Tonight: Lows Near 34° Thursday Oct 22
Pittsburgh, PA – Residents across portions of Ohio, Pennsylvania and West Virginia are being urged to protect sensitive outdoor plants Wednesday evening as temperatures are expected to drop into the m
By Lauren Beckett · 2026-10-21T16:39:38.961Z
Pittsburgh, PA – Residents across portions of Ohio, Pennsylvania and West Virginia are being urged to protect sensitive outdoor plants Wednesday evening as temperatures are expected to drop into the mid 30s overnight, creating conditions favorable for frost early Thursday, Oct. 22.
According to the National Weather Service offices in Pittsburgh and Charleston, frost advisories have been issued for numerous counties across the three state region, with temperatures potentially falling as low as 34 degrees.
Both advisories are in effect from 2 a.m. until 9 a.m. EDT Thursday , when frost formation could threaten gardens, flowers and other vulnerable outdoor vegetation.
Ohio Counties Facing Frost Conditions
In Ohio, the advisory covers a broad area of eastern and southeastern counties, including Columbiana, Jefferson, Belmont, Tuscarawas, Carroll, Harrison, Coshocton, Muskingum, Guernsey, Noble, Monroe, Perry, Morgan, Athens, Washington, Vinton and Meigs.
Communities including Steubenville, Zanesville, Cambridge, Marietta, Athens, East Liverpool and New Philadelphia could experience frost before sunrise.
Pennsylvania and West Virginia Also Included
In western Pennsylvania, the advisory includes Allegheny, Beaver, Washington, Greene, Westmoreland and Fayette counties, affecting the Pittsburgh metropolitan area and surrounding communities.
Across West Virginia, numerous northern, central and western counties are included, with communities such as Morgantown, Wheeling, Fairmont, Parkersburg, Clarksburg and Bridgeport facing similar conditions.
Plants Could Be Damaged Overnight
Although temperatures are expected to remain slightly above freezing in many locations, frost can still develop on exposed surfaces under favorable overnight conditions.
The National Weather Service warns that sensitive outdoor vegetation could be damaged or killed if left uncovered.
Residents should cover tender plants, move potted vegetation indoors when possible and take precautions before temperatures begin falling Wednesday night.
Motorists should also be prepared for chilly conditions during the early Thursday commute, although widespread roadway icing is not indicated by these advisories.
Temperatures are expected to recover after sunrise as the frost advisory expires Thursday morning.