7:52AM
DAYS 1-5 (DECEMBER 21-25)…
The very mild pattern likely peaks this week. After this, slight pattern instability and climatology will battle against allow it to become this mild again, though the long term still looks mild overall. Of more immediate concern is wind. As the pressure gradient tightens up today between low pressure to the west and high pressure offshore, we’ll see a moderate to strong southwest wind, making the mild temperatures reaching around 50 feel just a little cooler than that. Sunshine will also be lacking as high and mid level cloudiness will be plentiful. By Tuesday, the warming atmosphere will yield some rain for a period of time before a break arrives and lasts well into Wednesday. One more surge of wet weather will come through Wednesday night, and a mostly rain-free Christmas Eve is expected, when it may be warmest of all. A couple troughs and a front may cause a few rain showers as we transition back toward cooler at night, and by Christmas Day itself an area of high pressure should bring fair weather and temperatures, though cooler than the day before, will still be above the long term average.
TODAY: Limited sun, lots of clouds. Highs 47-54. Wind SW increasing to 15-25 MPH, gusting 35-45 MPH but gusts as high as 50 MPH possible over higher elevations and exposed locations in southeastern MA.
TONIGHT: Mostly cloudy. Light rain possible before dawn. Lows 40-47. Wind SW 10-20 MPH and gusty during the evening, diminishing overnight.
TUESDAY: Cloudy through early afternoon with periods of light rain. Breaking clouds and some sun possible later. Highs 48-55. Wind SW 5-15 MPH.
TUESDAY NIGHT: Partly cloudy. Lows 41-48. Wind S 5-15 MPH.
WEDNESDAY: Partly to mostly cloudy. Late-day rain southern areas. Highs in the 50s.
WEDNESDAY NIGHT: Cloudy. Periods of rain. Lows 45-55.
THURSDAY – CHRISTMAS EVE: Variably cloudy. Chance of rain showers. Highs 55-65.
FRIDAY – CHRISTMAS DAY: Mostly sunny. Lows in the 30s. Highs in the 50s.
DAYS 6-10 (DECEMBER 26-30)…
Possible rain late December 26 into December 27. Fair December 28. Possible mix to rain (most likely just rain) December 29. Fair December 30. Temperatures variable, still averaging above normal.
DAYS 11-15 (DECEMBER 31-JANUARY 4)…
Mainly dry weather. At this time it looks like any meaningful storminess will be pushed to the south and any energy from the northern jet stream would produce no more than a few rain or snow showers. Trending a little colder – temperatures above to near normal.