More Snow Expected Mid to Late Week in Northeast; Chilly Temperatures Dominate

Brian Donegan
Published: October 25,2016
Last week's record-warm highs in the 70s and 80s are now a distant memory across the Northeast as chilly temperatures have overtaken the region.
A southward dip in the jet stream that brought colder temperatures and even snow to the Northeast over the weekend will be reinforced mid to late week, keeping the chilly temperatures in place and bringing the next threat for accumulating snow.
This means both the Northeast and parts of the Great Lakes will likely see below-average temperatures for much of this week.
(MORE: Northeast Sees First Snow)

Accumulating Snow Ahead, Even at Lower Elevations

A weather system approaching the Northeast late Wednesday into Thursday will bring mainly rain, but parts of upstate New York and New England will see precipitation begin as snow or a rain/snow mix.
This past weekend's snowfall was confined to the higher elevations of the Adirondacks, Catskills, Green Mountains and White Mountains.
While any significant accumulation from this system will likely stay in the mountains, minor accumulations are expected even at lower elevations.
(MORE: When the First Snow of the Season Typically Falls)
Here's a brief timeline of this tricky forecast:

• Wednesday Night: Precipitation develops from west to east across the Ohio Valley, Pennsylvania, New York and southern New England. A brief period of snow or a rain/snow mix is possible before changing over to rain in most areas. However, snow or a rain/snow mix remains possible from upstate New York into southern New England into Thursday morning.

Wednesday Night's Forecast

• Thursday: Precipitation spreads eastward into New Jersey and much of New England. While most places quickly change to rain, snow or a rain/snow mix may continue through the morning in parts of central and eastern New York before the changeover. The precipitation may remain mainly snow or a rain/snow mix in northern New York and the higher elevations of New England for much of the day.

Thursday's Forecast

• Friday: Rain and snow will linger into Friday in portions of upstate New York, as well as in central and northern New England. Snow is expected in far northern New England, as well as in portions of northern New York (especially the Adirondacks). Snow will transition to snow showers during the afternoon in northern New York, while northern Maine may see snow showers persist into Friday night. Rain is expected for most of New England.

Snowfall Forecast

Minor snowfall accumulations are expected in the lower elevations of northeast Pennsylvania, upstate New York, western Connecticut, western Massachusetts, Vermont, New Hampshire and northern Maine.
Significant snow accumulations, however, should remain confined to the Adirondacks, Green Mountains and White Mountains.

First Freeze Ahead For Some

While much of the region will not see accumulating snowfall, chilly temperatures will be felt by most of the Northeast this week.
High temperatures will generally be 5 to 10 degrees below average across the Northeast through Thursday before recovering to near average by Friday and the weekend.
Meanwhile, low temperatures could be up to 10 to 15 degrees below average in some areas, especially Wednesday and Thursday mornings.

Current Frost/Freeze Alerts

Freeze warnings have been posted from parts of southern New England to portions of the mid-Atlantic into Wednesday morning.
Major cities, such as Boston, New York City, Philadelphia and Baltimore are not included in the freeze warning due to the urban heat island effect keeping them warmer than outlying areas. However, Philadelphia, Baltimore and Washington D.C. are all under a frost advisory.
(MORE: Urban Heat Islands: Why Cities are Warmer than Rural Areas)

Forecast Morning Lows

Boston will see high temperatures mostly in the upper 40s this week. Lows will dip into the 30s through Thursday morning, making it the coldest so far this season there.
New York City will mainly be in the low to mid 50s with lows diving into the 30s Wednesday morning and perhaps Thursday morning. These would be the first 30s of the season in the Big Apple.
On average, Boston sees its first freeze in early November, and New York City sees its in mid-November. Our current forecast on weather.com expects both cities to remain above 32 degrees the next several mornings, though the rural areas outside of the cities may dip to the freezing mark.
(MORE: A Handy Guide to When Your First Freeze Typically Arrives)
MORE: Northeast Snow, Oct. 2016