We’ve got good news and bad news for the weekend forecast. Good: It’s going to turn milder and rain, to get rid of some of the snow on the ground. Bad: It’s going to turn colder and snow again.
Lots of rapid changes will be happening over the next several days across the region. First, we have a weak system swing through tonight, producing some flurries and snow showers through the evening. They may coat the ground in some spots, with a little more than a coating near the South Coast and the Cape, but this is not a big deal. High pressure builds in for Friday with sunshine and seasonably chilly temperatures, but then the changes really begin. Clouds move in Friday night ahead of a strong cold front. Saturday looks to be a mild day ahead of that front, with much of the region topping 40 degrees in the afternoon. However, we’ll have some rain moving in, though it won’t be that heavy. The rain ends Saturday night as the front moves through, but that front will slow down or stall out just offshore. Sunday looks to be colder, but still near normal for mid-January with some breaks of sun in the morning, but we’ll quickly cloud back up in the afternoon.
A wave of low pressure will ride along that front Sunday night, but exactly where the front stalls out will be a key part of this forecast. With that wave moving back, we’ll have a period of light snow Sunday night into early Monday. The farther offshore the front is, the lighter the amounts as you head farther inland. The closer to the coast, the better chance for some rain at the start late Sunday. In general, it’s not going to be a big storm, but many of us could see 2-4″ of new snow on the ground when you wake up Monday morning. There is the potential for a little more, especially south of Boston, but those are details we can iron out over the next couple of days. As the system pulls away on Monday, much colder air will flood into the region, with temperatures dropping during the day. Tuesday and Wednesday are going to be very cold days, with many places likely not reaching 20 for highs, and nighttime lows dropping into the single numbers or below zero. We’ll have much more detail on that in our Weekly Outlook early Monday.
Thursday night: Some flurries or snow showers this evening, skies start to clear out late at night. Low 14-21.
Friday: Becoming sunny. High 30-37.
Friday night: Clear during the evening, clouds start to move back in after midnight. Low 20-27 during the evening, temperatures may rise a little after midnight.
Saturday: Cloudy and breezy with rain showers developing in the afternoon. High 40-47.
Saturday night: Showers end in the evening, partial clearing after midnight. Low 27-34.
Sunday: Some morning sun, then clouds return with light snow developing before evening, some rain could be mixed in at the start across Cape Cod. High 36-43.
Sunday night: Light snow likely, ending by daybreak. Low 14-21.
Monday: A mix of sun and clouds, breezy, and turning colder. High 20-27, except 27-34 across Cape Cod and southeastern Massachusetts, but temperatures may start dropping in the afternoon.
Storm HQ 