DAYS 1-5 (JANUARY 16-20)
We remain in a cold pattern overall, but a brief warm-up is coming, and it’s part of a pattern change that introduces more snow chances ahead, but first, a weak disturbance coming along from the west today will send clouds into the region and a period of snow showers this evening / tonight. Only a dusting / coating of snow is possible but up to an inch can fall on the islands just south of Cape Cod, as they will be closer to what becomes a developing low pressure area before it moves away overnight. Weak high pressure noses in on Friday from the southwest with fair and pleasant mid winter weather. High pressure then slides off the Atlantic Coast and a trough and cold front approach from the west Saturday, which will be a milder day. Enough mild air comes in so this front will be a rain producer for several hours Saturday evening – maybe enough to wash residual salt / road treatment off surfaces not too long before we’ll need them again. This will become the case as after the front moves through, cold air returns, then a wave of low pressure brings a period of accumulating snow Sunday night into early Monday. Later Monday, the coldest air mass of the season so far will be knocking on the door and not waiting for us to open it before barging in.
TODAY: Increasing clouds – fading sun. Highs 26-33. Wind variable up to 10 MPH.
TONIGHT: Cloudy. Snow showers with dustings / coatings for accumulation, except up to 1 inch Martha’s Vineyard and/or Nantucket. Lows 18-25. Wind variable under 10 MPH.
FRIDAY: Decreasing clouds – sun returns. Highs 30-37. Wind W up to 10 MPH.
FRIDAY NIGHT: Increasing clouds. Patchy black ice possible overnight. Lows 23-30 in the evening, rising back into the 30s overnight. Wind W under 10 MPH evening, shifting to S and increasing to 5-15 MPH overnight.
SATURDAY: Cloudy. Rain arrives late-day. Highs 40-47. Wind S 5-15 MPH, gusts 20+ MPH.
SATURDAY NIGHT: Cloudy with rain during the evening. Rain ends, clouds thinning overnight. Lows 32-39. Wind S 5-15 MPH, shifting to W.
SUNDAY: Limited sun early, then cloudy. Highs 37-44 in the morning, then falling slowly through 30s. Wind W up to 10 MPH shifting to N.
SUNDAY NIGHT: Overcast. Snow with up to a few to several inches possible. Lows 18-25. Wind N 5-15 MPH.
MONDAY (MLK JR DAY): Cloudy with snow early, then a sun/cloud mix. Highs 25-32 by midday, then quick-falling temperatures later in the day. Wind N to NW increasing to 10-20 MPH with higher gusts.
DAYS 6-10 (JANUARY 21-25)
Dry and very cold through the middle of next week followed by a chance of snow late next week.
DAYS 11-15 (JANUARY 26-30)
One or two additional opportunities for snow in a continued cold pattern.