Tuesday December 16 2025 Forecast (7:42AM)

61 Comments

DAYS 1-5 (DECEMBER 16-20)

An atmospheric inversion results in a lot of clouds to start our day today but sun will make a return as the atmosphere mixes. It will be chilly, but not as cold as yesterday, and also less breezy, so a nice mid December day overall. The very modest temperature moderation today becomes more noticeable Wednesday and especially Thursday as high pressure slides offshore and a southerly air flow develops. This sets the stage for a brief warmer, wet weather event as low pressure heads through the Great Lakes and into southeastern Canada Thursday night through Friday. A strong cold front will produce a band of rainfall here, but a quick ending to it return to dry, chilly weather will take place from west to east during the day Friday as the front sweeps through. Saturday will feature a seasonable chill and as the next clipper low approaches, it will be starved for moisture but can produce a brief snow shower at some point later Saturday.

TODAY: Clouds give way to sun. Highs 32-39. Wind W 5-15 MPH.

TONIGHT: Partly cloudy. Lows 15-22. Wind WSW up to 10 MPH.

WEDNESDAY: Partly sunny. Highs 37-44. Wind WSW 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows Lows 25-32. Wind SW 5-15 MPH.

THURSDAY: Partly to mostly cloudy. Highs 44-51. Wind SW 10-20 MPH.

THURSDAY NIGHT: Cloudy. Widespread rain showers arrive west to east late evening and overnight. Lows 37-44 early, then rising slowly. Wind SW to S 10-20 MPH.

FRIDAY: Overcast with widespread rain showers morning, may end mixed with snow in higher elevations well northwest of Boston midday. A sun/cloud mix remainder of day with a chance of evening snow showers north and west of Boston. Highs 48-55 morning, followed by falling temperatures. Wind S 10-20 MPH, higher gusts, shifting to W.

FRIDAY NIGHT: Partly cloudy. A passing snow flurry possible. Lows 21-28. Wind W 10-20 MPH, higher gusts, diminishing overnight.

SATURDAY: Sun followed by clouds. A possible snow shower late-day or evening. Highs 35-42. Wind variable up to 10 MPH.

DAYS 6-10 (DECEMBER 21-25)

Weak system passes to north December 21, the day of the winter solstice (10:03 a.m. EDT), and may produce a quick sprinkle of rain or flurry of snow, otherwise dry and breezy. Another weak system can produce rain or snow showers about December 23 before the next one approaches with a precipitation chance on Christmas – too soon for details.

DAYS 11-15 (DECEMBER 26-30)

Up and down temperature pattern with a couple precipitation events possible near the temperatures battle zone. No big storms indicated.

61 thoughts on “Tuesday December 16 2025 Forecast (7:42AM)”

  3. Thanks TK !

    Wordle for Tuesday: 6 and I will take it enthusiastically !!

    I have a new word in my vocabulary

    I’m not looking at it currently, but I think Logan’s temp anomaly yesterday was -17F or so and took the month to -7.7F.

    Reply

    1. You got it. Now, see TK would have gotten this one for sure.

      I knew the word and after my second guess, I had 3 in the correct position and 1 incorrect which actually gave me 4 in the correct position, so for guess 3 it was pretty easy getting the last letter.
      And I knew the word well, so that helped as well.

      Sometimes I play this game very well and sometimes I play it like total CRAP!!!

      Reply

    2. 6 is great for this word. I saw the answer and nearly said aloud..could that be it. Got a 4 but took a while to come up with it

      Reply

      1. Nice. I had a lucky 2nd guess where I threw letters together and didn’t even know IF it was a word. Turns out it was (nowe looked it up. ) and got 2 more letters in position, making guess 3 a piece of cake.

        Reply

  8. https://www.pivotalweather.com/model.php?m=ecmwf_full&p=925wh&rh=2025121600&fh=84&r=us_ne&dpdt=&mc=

    https://www.pivotalweather.com/model.php?m=gfs&p=925wh&rh=2025121600&fh=84&r=us_ne&dpdt=&mc=

    https://www.pivotalweather.com/model.php?m=nam&p=925wh&rh=2025121600&fh=84&r=us_ne&dpdt=&mc=

    925 mb jet Friday morning at 12z

    Surface temps on all 3 models show low-mid 50s all the way to southern NH, so, a surface inversion may be gone to help stabilize things.

    Reply

    1. 55-60 knots at 925 mb

      Will the heavier rain or any convective elements overlap this.

      At least Blue Hill observatory might have some quite high wind gusts Friday morning, not sure about the sfc where we all reside.

      Reply

      1. Sure 🙂

        Yeah, a few hr slug of rain, I didn’t look at the projected QPF, but, I might guess .5 to 1 inch in a few hrs, as currently modeled.

        But, those 925 mb modeled winds sure have my attention.

        However, it is 72 hrs out and I feel like, more times than not, as you get closer, the models tend to back off a bit on the intensity of the wind, because they over deepen the low pressure area too much. And then, as the low doesn’t project as strong, the gradient and therefore, the wind potential doesn’t end up being as strong. We’ll see if that happens here.

        Reply

  9. I looked at some models for the next 2 weeks … something I do not often do. The whole thing looks like Cutter City. Can someone confirm or deny?

    Reply

    1. Both TK and JMA said to ignore the models after 4 days out yesterday and so, I am only following them through Friday’s cutter. After that, I trust nothing they show. 🙂 🙂 🙂

      Reply

  10. Thanks, TK.

    Dutch forecasters now estimate a 70% chance of a long-lasting Scandinavian high developing by next week. This means an east wind and cooler (perhaps colder) temps. Usually, this pattern indicates stable weather there but below average temps. While it is NOT a typical winter pattern over there, once it sets up shop it takes a while to dislodge.

    Generally speaking, when it’s colder than normal and dry there (low countries), it’s mild(er) than normal here.

    Reply

    1. It’s similar in summer. Their typical pattern is a prevailing southwesterly (all seasons) that tends to bring clouds, periodic light rain and some sunshine in between. But if a Scandinavian high develops, they tend to get their best weather, sunny and dry, little wind, often for weeks on end. Meanwhile, this often correlates with weather that isn’t so great here.

      In any case, I do NOT like the looks of this. It doesn’t bode well for us in terms of snow or prolonged periods of cold.

      Reply

      1. I don’t know what the teleconnection is – I’m not even sure what a teleconnection is! – but the correlation exists.

        Reply

        1. it’s when you call someone on the phone and they answer and you speak with them. In other words you connected with them. 🙂

          Reply

  11. 1. What happened on Bondi Beach in Australia, will be on the national news in Australia likely for a month or more unlike here in the US in which such event is sadly not a big enough story for the news cycle.
    2. This world started to go down well before covid19 in terms of evil showing its head. A certain group of politicians nursed the ugly under belly of the USA to the surface and took advantage of it.
    3. The vast majority of people are good humans I think the majority of us just don’t know what we as individuals can do.
    4. In Australia the whole they got rid of the guns is kind of a false narrative. As the stats say 1 in 5 to 1 and 6 people own guns and they tend to have more than just that 1 gun. What is true is that they have to go through a back ground check and its reviewed constantly. No one with a crime can have one. Anyone with mental issues can not have one. Australia has cameras every where and you only see maybe half of them that are on the road and in busy areas. Australians basically have done the opposite of what the USA has done in most aspects and it works in terms of the gun violence. Someone being gunned down at a grocery store makes the national news.
    5. Patriots need to be able to play all 4 quarters, they haven’t really shown that ability. They need to be able to respond to the other teams adjustments to them. Red Zone defense needs to be better.

    In terms of the weather, what a grinch, going to rain later this week to ruin the great snow pack across ski country. Then the cold returns and looks like we are in a similar pattern in which storms form to far to the east.

    Reply

      1. already home got in on Saturday, on Sunday, put up the living room tree and my brother and his girlfriend joined and of course since i was outside decorating the outside with my Dad when they showed up and it was snowing a little had to have a small snowball fight before the xmas tree decoration. Brothers will always be brothers have to say I think he won, he got me good with a slush ball lol.

        Reply

      1. I’d be shocked to see a 1 or 2 for this although of course can’t rule it completely out. I think you can be quite comfy in the engineer seat. 🙂

        Reply

  19. MIT professor in the Nuclear Science & Engineering and Physics department shot and killed today in Brookline, Massachusetts.

    The world is going bonkers and in a bad way.

    Reply

  22. Mt. Mansfield VT…

    Current snow depth: 61″. Record for deepest this early in the season (December 16).

    Previous record: 49″.

    Average snow depth for December 16: 23″.

    Reply

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