Forecast discussion: After a very mild day with a little sunshine, it is hard to forget that winter officially started at 12:11 p.m. on Saturday. We will feel more of spring like weather for the next couple of days, before a cold front returns us to winter like temperatures in time for Christmas Eve.
Right now, a stationary front over Northern New England has been bringing ice and freezing rain to that part of the region. Meanwhile, we remain on the southern side of the front, allowing for well above average temperatures. For tonight, we will see some drizzle and isolated showers pass through Boston, as the front lowers southward. Also, with more humidity in the air, we will see patchy to dense fog tonight, especially where there is still some snow covered sidewalks. The warm air will meet the colder moisture from the snow, making the fog.
As we head into Sunday, the cold front that is bringing severe weather to the Tennessee River Valley will bring some more showers by the early morning. The heaviest precipitation will come on Monday, as the front inches closer to eastern Massachusetts. By Monday afternoon, the front will pass through, and colder air will begin to take over. So, we will see our high temperature early in the day, before it begins to fall. Any leftover moisture from over the ocean may fall as flurries into Christmas Eve morning.
By Tuesday morning, it will feel more like winter, as temperatures will try to go above freezing. On Christmas Day, it will be mostly sunny and breezy. As we head through the rest of the week, we will see high pressure control our weather pattern, keeping us dry while giving us high temperatures ranging from the lower to upper 30’s.
72 hour forecast:
Tonight: Cloudy skies with patchy fog developing in areas. Some drizzle or isolated showers are possible after 1 a.m. It will be mild with a low of 48.
Sunday: Overcast skies and warm with scattered showers. We will see a high of 57. Patchy to dense fog possible, especially with snow cover still on the ground. Winds will come from the south-southwest at 11-14 mph.
Sunday night: Scattered showers end by midnight with a low of 45. Patchy fog is possible, especially inland. Winds will come from the southwest at 9-13 mph.
Monday: Showers return by 5 a.m., and may see light to moderate rain through the day. We will see a high of 53 before temperatures fall during the afternoon.
Monday night: Precipitation ends as snow showers around 4 a.m. and colder with a low of 31.
Christmas Eve: Mostly sunny and colder with the high only reaching 33.
Tuesday night: Partly cloudy and chilly with a low of 17.
Christmas Day: Mostly sunny and breezy. Highs 25-28, lows 20-23.
Thursday: Partly sunny. Highs 36-39, lows 27-30.
Friday: Mostly sunny. Highs 36-39, lows 23-26.
Saturday: Mostly sunny. Highs 32-35, lows 19-22.