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Summary: Surface high pressure will be centered directly over New England tonight which will result in ideal radiational cooling conditions; clear, calm and dry. As a result, we will likely have the coldest night of the season thus far, with temperatures falling to between 10 and 15 degrees in most locations. High pressure will then drift to our east on Thursday and Friday. An approaching very weak low pressure system and its associated warm front will move through on Friday. As a result, there will be an increase in cloudiness on Thursday and there is the chance of some very light precipitation, predominantly on Friday morning. This should be mostly light rain and sprinkles although there could be a little mixed precipitation at the start.

A very strong cold front will plow through Friday night and it will get progressively colder and windier through the weekend. Saturday will probably not be a bad day, with a fair amount of sun, fairly light winds and temperatures in the 30s as the deep trough in the jet stream (and its core of arctic air) behind the front make their way gradually to the east. However, it will turn absolutely brutal by Sunday with daytime temperatures holding in the 20s (at best) with very strong northwesterly winds dropping wind chills into the single digits.

The long-range computer models have been generating a coastal storm for next Wednesday over the past few days. Even though the current runs suggest this storm will go out to sea to our south, it is still way too early to draw any conclusions about this. However, it may be best to stay tuned if you are planning on traveling for Thanksgiving (oh no, I’m starting to sound like the “Weather” Channel).

Wednesday Night

Mostly clear, calm and cold.

Low temperatures will reach 10-15 degrees in most locations.

Calm winds.

Thursday

Mostly sunny through mid morning, then increasing cloudiness. It will average out partly sunny during the afternoon.

High temperatures in the low 40s in Pittsfield, North Adams, Adams and Williamstown; low to mid 40s in Lee, Stockbridge, Great Barrington and Sheffield and; upper 30s to near 40 over the elevated terrain and hilltowns.

Winds light and variable early, becoming south-southwesterly at 5-10 mph.

Thursday Night

Mostly cloudy. There is a chance of a light rain shower or sprinkle toward daybreak. This could begin as a little light mixed precipitation, particularly over the higher terrain. Probability of precipitation 40%. Rainfall totals less than 0.05″.

Low temperatures in the low 30s, low to mid 30s in South County, and near 30 over the elevated terrain.

Light south-southwesterly winds.

Friday

Mostly cloudy to overcast. Scattered light rain showers are likely, predominantly during the morning. Probability of precipitation 60%. Rainfall totals 0.10″ or less.

It will be a bit milder, with high temperatures in the mid to upper 40s in Pittsfield, North Adams, Adams and Williamstown; upper 40s in Lee and Stockbridge, Great Barrington and Sheffield and; low to mid 40s over the elevated terrain and hilltowns.

Southwest winds at 5-10 mph.