Weather Forecast

Extended Forecast  |  Significant/Hazardous Weather  |  Recreational Forecast  |  Detailed Discussion  |  Farm & Garden  |  Wind by Elevation  |  Temperature by Elevation

Detailed Forecast

Tuesday Night:
Mostly cloudy. Scattered, light snow showers, maybe a dusting. Lows from 5 to 15 above east of the Greens, and mid teens to around 20 in the west. South to southwest winds 5 to 10 mph, except gusting to 25 mph in the Champlain Valley.

Wednesday:
Cloudy. Periods of snow, with 2 to 5 inches, except 4 to 8 inches in the southern Adirondacks, southern Greens, and
White Mountains, and 1 to inches in southeastern valleys and in the Champlain Valley. Highs mainly in the upper 20s to lower 30s, with some mid 30s in southern valleys, and in the Champlain Valley, and some mid 20s northeast. South to southeast 5 to 15 mph, gusting to 25 mph in the Champlain Valley.

Wednesday Night:
Snow showers diminishing from south to north; another trace to 2 inches. Lows from the upper teens to mid 20s, some mid teens in far northern New York. Winds becoming west 5 to 10 mph.

Extended Forecast

Thursday:
Mostly to partly cloudy in far southern valleys; otherwise mostly cloudy, with scattered snow showers north, and numerous in the northern mountains and southern Greens. Highs in the mid to upper 20s in the south, and low to mid 20s north, except teens in far northern New York. West winds 10 to 15 mph, gusting to 25 mph.

Thursday Night:
Periods of clouds. Scattered snow showers north, numerous in the northern mountains. Lows in the single digits to around 10 above in the north, low to mid teens in the south.

Friday:
Mostly sunny, except clouds gradually decreasing northeast, with some mountain flurries there. Highs in the low to mid 20s south and in the Champlain Valley, mid teens to lower 20s elsewhere north.

Friday Night:
Periods of clouds. Chance of late-night snow showers in New York. Lows in the single numbers to low teens north, teens to near 20 south.

Saturday:
Mostly to partly sunny. Chance of snow showers. Highs from the mid 20s to around 30, some lower 20s northeast.

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Significant/Hazardous Weather

Periods of snow Wednesday into Wednesday night could result in poor driving conditions, with snow showers lasting over the higher terrain into Thursday.

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Recreational Forecast

Mountain Forecast:
The summits can expect morning sun to give way to increasing and lowering clouds west to east, as lighter southwest winds becoming moderate from the south. Temperatures moderating several degrees. Tonight into Wednesday features summits obscured in clouds and snow, moderate south winds creating some blowing and drifting, and temperatures climbing several more degrees. Thursday’s outlook keeps the summits in the clouds with scattered to frequent snow showers, moderate to strong west winds creating blowing, drifting, and poor visibilities at times, while temperatures fall to near or below zero, resulting in very low wind chills. Extra caution is urged for the mountains Thursday.

Wind At Lower Elevations:
Winds today light, becoming south near 10 mph east, and 10 to 15 mph from the Green Mountains west, gusting 20 to 30 mph. Tonight, winds southwest 10 to 15 mph, gusting 20 to 30 mph from the Green Mountains west, diminishing to less than 10 mph east. On Wednesday, winds becoming south to southeast 10 to 15 mph, gusting 20 to 30 mph from the Green Mountains west. The outlook for Thursday calls for west winds 10 to 15 mph, gusting 20 to 30 mph.

For more details on Lake Champlain, go to: https://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV

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Detailed Discussion

While it is December, and winter rarely waits for the calendar and the solstice, there aren’t a lot of Decembers that see this kind of mid-winter cold this early. Single numbers and teens below zero are the rule this morning, with the cold spots slipping to 20 below, thanks to an idea set-up for radiational cooling – when any warmth near the Earth’s surface radiates out through our atmosphere when the skies are clear and the winds and light. Such conditions are typical beneath high pressure, like the one that arrived yesterday from the Great Lakes, a modified piece of arctic air which extends from Maine to Mississippi this morning. Similar to the fast-moving storm that invited this cold, this morning’s high should quickly head east, taking the coldest of its air with it. Already, some high clouds are edging into NY state from the Great Lakes, where the first piece of a two-part system is spreading snow from Wisconsin into Michigan, while a second, stronger impulse, a rather strong Alberta Clipper, appears to be strengthening as it heads for the Dakotas today, Michigan by this time tomorrow, and then tracking north of us during Wednesday night, continuing northeast of Maine on Thursday. The first piece of the storm brings a period of very light snow or snow showers, mostly from the Adirondacks and Rt. 4 north, only a dusting to an inch at most. The second, stronger storm spreads steadier snow east tomorrow morning, but with the storm’s track to our north, gusty south winds will lift milder air into the region, temperatures climbing to the upper 20s and low 30s north, and above freezing from the Champlain Valley, and through areas south of Rt. 4 and Laconia. This means the precipitation stays mainly snow north, but a mix or change to rain occurs in the south, obviously impacting accumulations. An early look at accumulations brings 1 to 3 inches through tomorrow, while an additional 1 to 3 inches are possible, especially for the higher elevations tomorrow night through Thursday. As the storm heads northeast Thursday, colder air returns, with steady or falling temperatures, snow showers more likely over the mountains, scattered in northern valleys, and a few hints of sun in southern valleys. The departing storm slows down over the Canadian Maritimes, keeping periods of clouds and a few snow showers lingering through the northern Green and White Mountains, permitting some sunshine to the west and south. Another shot of arctic air approaches Saturday, perhaps triggering some snow showers, especially north and in the mountains, followed by more early winter cold Sunday into early next week.

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Farm & Garden

Rainfall Forecast:
The Farm and Garden forecasts will resume in April of 2026.

Drying Conditions:

Frost:

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Wind by Elevation

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Temperature by Elevation

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