DAYS 1-5 (DECEMBER 27-31)
The final 5-days of 2021 will present a continuation of the weather pattern we’ve been in: Frequent weather systems passing through, no major storms in terms of powerful low pressure areas, but plenty of things to keep track of. The ridge of high pressure in the southeastern US remains a major player in the large scale pattern while we see some seriously cold air enter the western US, helping to fuel the contrast that keeps these systems coming. Locally, we’ll only see minor impacts from these systems as there is not much support to keep them healthy as they move through the region. After a nice but cold start today, we’ll see clouds move in ahead of the next disturbance which will result in a little bit of snow, ice, and rain tonight, depending on your location. A second impulse will come along later Tuesday night into Wednesday, producing a minor variety of precipitation. Despite these being “minor” events in terms of strength and duration, both of them can become a little more significant in that they both bring threats of some icing conditions away from the immediate coast where freezing rain occurs, so travel hazards for walking and driving on untreated surfaces exist for both late tonight into Tuesday morning and again early Wednesday. The air should warm enough so that the next threat from a system moving through on Thursday should be mostly in the form of light rain, but temperature may also be marginal for icing over some interior areas for this, depending on its timing, so we have to keep an eye on it too. It looks like an area of high pressure should bring dry weather at the end of this 5-day period as we reach the final day of 2021 on Friday.
TODAY: Sunshine followed by clouds. Highs 31-38. Wind W up to 10 MPH becoming variable under 10 MPH.
TONIGHT: Cloudy. Late evening and overnight light snow to freezing rain except mix to rain South Coast region and South Shore of MA. Lows 22-29 evening, rising to 30-37 overnight. Wind S under 10 MPH.
TUESDAY: Cloudy with spotty light freezing rain inland and rain near the coast early, then partly sunny. Highs 40-47. Wind variable up to 10 MPH.
TUESDAY NIGHT: Mostly cloudy. Light snow/ice/rain possible overnight. Lows 28-35. Wind N under 10 MPH.
WEDNESDAY: Cloudy. Spotty light mix/ice away from coast, rain coast, mainly in the morning. Highs 37-44. Wind E 5-15 MPH.
WEDNESDAY NIGHT: Mostly cloudy. Lows 30-37. Wind variable up to 10 MPH.
THURSDAY: Mostly cloudy. Chance of light rain, may start as freezing rain away from the coast. Highs 40-47. Wind variable to S up to 10 MPH.
THURSDAY NIGHT: Clearing. Lows 25-32. Wind W up to 10 MPH.
FRIDAY: Mostly sunny to partly cloudy. Highs 35-42. Wind NW 5-15 MPH.
DAYS 6-10 (JANUARY 1-5)
New year, continued active pattern, as we watch for precipitation events on New Year’s Weekend (January 1-2) and another toward the end of the period. The confidence is low on any forecast out beyond a few days still, so won’t try to guess on any details for these events. Variable temperatures averaging close to normal.
DAYS 11-15 (JANUARY 6-10)
Pattern remains active, temperature trend appears to be colder.