Pittsburgh, PA – Patchy frost could threaten gardens and outdoor plants across parts of Pennsylvania and West Virginia early Monday as overnight lows dip into the 30s and low 40s.
According to the National Weather Service in Pittsburgh, a Frost Advisory remains in effect from 1 a.m. to 8 a.m. Monday for northeastern Pennsylvania counties and eastern Tucker County in West Virginia. Cities including Clarion, Butler, Punxsutawney, Oil City, and Davis, WV are expected to see lows as cold as 36–38°F, with frost possible in sheltered valleys.
Pittsburgh, New Castle, and Zanesville, OH, will see slightly warmer lows near 43°F, but outlying areas with less urban heat could still see patchy frost. The NWS warns that sensitive outdoor vegetation may be damaged or killed if left unprotected.
Residents are urged to cover plants, move potted vegetation indoors, and limit overnight irrigation. Farmers and gardeners should take immediate action to avoid frost-related losses, especially in higher elevation zones like Terra Alta and Davis, where the coldest temps are expected.
Frost risk will diminish after sunrise, but additional advisories are possible if another cool night sets in later this week.