Cloudy, cool, and quiet week begins

finger lakes weather forecast monday december 7 2020 lake effect clouds snow freezing drizzle
A cool week is ahead, though a slight warming trend will take place. A couple chances for very light snow will also unfold this week. [Photo by Gwen Moshier]

Early Week Weather

A quiet, cool weather pattern will stick around for much of this week with only a couple small disturbances passing through.

Chilly northwest winds will remain today for a day very much like Sunday. This northwest flow will produce some very light lake effect for the eastern Finger Lakes in the same areas that saw it yesterday. Both light snow and freezing drizzle will be possible. A few untreated surfaces may be slick.

Outside of any lake effect, skies will be filled with thick clouds. The clouds and northwest winds will limit the temperatures again, with the majority of the region failing to reach 30 degrees.

Wind speeds will be greater than 5 mph, but generally less than 10 mph. Top gusts will only be near 20 mph. These wind speeds are lower than yesterday.

Our first small disturbance will quickly drop south this evening. A quick flare-up of snow is expected, with widespread light snow falling for a couple hours. Only a light coating of accumulation is anticipated.

It will be more of the same behind this disturbance tonight into tomorrow, with light lake effect in the east and clouds everywhere.

Overnight temperatures will drop just a couple degrees with low and mid 20s the common temperatures.

Winds will begin to shift Tuesday afternoon, turning to the west and southwest. This will allow temperatures to reach the low 30s and should break up the lake induced cloud cover. Western areas less influenced by Lake Ontario will clear out first, but most areas should see the sun before it sets.

finger lakes weather 7-day forecast monday december 7 2020
This graphic represents an average over the entire Finger Lakes region. Localized variations should be expected. Click to enlarge.
finger lakes weather 7-day forecast monday december 7 2020

Late Week Weather

Clouds will move back in Tuesday night as the next disturbance approaches. Light snow should fall Wednesday morning as this system passes through. A coating to an inch or so of snow may accumulate.

The snow should taper off by midday Wednesday. Winds will remain westerly, keeping any lake effect locked to the north over the Tug Hill region.

It will remain cloudy, though. High temperatures will manage to get to the 35-40 degree range.

A few flurries will be possible southeast of Lake Ontario early Thursday as winds become more northwesterly, but high pressure will be building in, leading to calm winds and unfavorable lake effect conditions during the afternoon and nighttime hours. Some sunshine will be possible late in the day.

Thursday’s temperatures will be in the upper 30s and low 40s.

New clouds will stream in for Friday and Saturday. At least on Friday, the clouds may be thin enough and high enough in the atmosphere to allow some filtered sunshine.

South winds will set up, with speeds of 10-15 mph by the afternoon and gusts reaching 25 mph.

Temperatures will respond favorably, with highs Friday in the mid and upper 40s. A few western areas could even reach 50 degrees.

The 50s will spread on Saturday, with most areas along the I-90 corridor reaching the low 50s. The rest of the region will be in the mid and upper 40s as clouds thicken.

Showers will become possible Saturday night into Sunday as a low tracks through southern Canada. Colder air behind the low will turn the rain to snow for Sunday night and Monday, but accumulations look to be minimal.

Next week looks chilly with a couple chances for snow, but nothing significant is expected at this time.

More Information:

» Finger Lakes Weather Radar

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Meteorologist Drew Montreuil
Follow Meteorologist Drew Montreuil:
Meteorologist Drew Montreuil has been forecasting the weather in the Finger Lakes region since 2006 and has degrees in meteorology from SUNY Oswego (B.S. with Honors) and Cornell (M.S.). Drew and his wife have four young boys and also run a goat milk soap business, Ye Olde Goat Cart. When not working or playing with the boys, he is probably out for a run through the countryside.