00:00Temperatures will drop 10 to 20 degrees below Friday's highs across much of the northeast.
00:05That means the first widespread frost and freeze of the season could arrive by early Wednesday morning.
00:10High pressure from Canada is bringing the coldest air in months.
00:14This cold front ended summer-like warmth.
00:16That pushed highs into the mid to upper 80s along Interstate 95 just days ago.
00:21Cities near the Great Lakes and larger urban areas may avoid frost because of warmer waters and the urban heat
00:28island effect.
00:28But rural and inland spots, especially mountain valleys and plateaus, face the greatest risk.
00:35AccuWeather senior meteorologist Brett Anderson says the highest risk of a killing freeze will be from northeastern Pennsylvania to the
00:43Adirondacks and New England interior.
00:45This early freeze could end the growing season for unprotected plants.
00:49The chill will also speed up fall colors across New England.
00:52Disclosure. This video contains stock footage and content created or enhanced using AI-assisted tools.