Monday December 7 2020 Forecast (7:31AM)

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DAYS 1-5 (DECEMBER 7-11)

High pressure brings dry and cold weather today, but we’ll already be impacted in a way by the developing low to the south that we’ve been eyeing for early this week. That system will spread high to mid level cloudiness across the sky during the day today, eventually limiting the short-lived sunshine, which is now setting at its earliest of the year (4:11 p.m. at Boston). That storm system, passing southeast of the region on Tuesday, will indeed be far enough offshore to avoid direct impact, but the northeast to north wind on the back side of its circulation will pick up enough Atlantic moisture to deliver snow & rain showers to the MA East Coast, especially the South Shore, as well as Cape Cod. There is the possibility for some minor snowfall accumulation if any location that sees persistent snow showers, but this would be localized and would melt away after it stopped falling. If a little snow should fall on an ice patch, it can create a very small but very hazardous “slip & slide” zone, and one you probably don’t want your foot finding, so keep that in mind should you live in an area that gets dusted with snow – otherwise this will not be a big deal. The next disturbance will dive southeastward out of Canada, a bit more quickly than I previously thought, bringing some cloudiness and a few snow showers later Wednesday. Again these should be non-impactful, but there is always the chance that one briefly moderate snow shower could cause a brief dusting on some surfaces. High pressure builds in Thursday and Friday with fair weather.

TODAY: Sunny morning. Increasing clouds afternoon. Highs 33-40. Wind NW up to 10 MPH.

TONIGHT: Mostly cloudy. Slight chance of snow showers MA East Coast. Lows 25-32. Wind N to NE up to 10 MPH.

TUESDAY: Mostly cloudy to partly sunny. Chance of snow and rain showers MA East Coast especially South Shore as well as Cape Cod. Highs 35-42. Wind NE to N up to 15 MPH, a few gusts to 25 MPH possible Cape Cod.

TUESDAY NIGHT: Variably cloudy. A lingering snow flurry near Cape Cod early. Lows 18-25. Wind N to NW 5-15 MPH.

WEDNESDAY: Variably cloudy. Passing rain and snow showers possible, mainly afternoon and favoring areas west and north of Boston. Highs 35-42. Wind NW to W 5-15 MPH.

WEDNESDAY NIGHT: Variably cloudy with a risk of snow showers early, then clearing. Lows 20-27. Wind NW 5-15 MPH, a few higher gusts.

THURSDAY: Sun and passing clouds. Highs 38-45. Wind NW 10-20 MPH, diminishing.

THURSDAY NIGHT: Clear. Lows 20-27. Wind W under 10 MPH.

FRIDAY: Sun and high clouds. Highs 40-47. Wind SW up to 10 MPH.

DAYS 6-10 (DECEMBER 12-16)

Weekend storm system brings some unsettled weather but temperature profile is somewhat uncertain, dependent on the position of frontal boundaries. Will refine this forecast as we go through the week. Fair, seasonably chilly weather follows this but another low pressure area may bring a chance of rain/mix/snow by the end of the period.

DAYS 11-15 (DECEMBER 17-21)

Chance of rain/mix/snow early in the period depending on the development and track of low pressure. Fair, colder to follow.

31 thoughts on “Monday December 7 2020 Forecast (7:31AM)”

    3. I saw the same thing on someone’s forecast with high temps around 80 a few weeks ago. 😀

      It’s a recurring error in the system…

    1. Nice Mark! That’s the way things should look this time of year, but will that landscape be replenished in time for Christmas Day itself? 😉

  7. It was all about elevation on Saturday when it came to the snow. It felt like a late winter early spring snow where elevation played a big factor.

  9. Philip I got just under an inch. When the rain turned to snow those were some of the biggest flakes I have seen in a while. It snowed pretty hard for a couple hours but it just didn’t accumulate much. When the precipitation got lighter in the early afternoon rain began to mix in with the snow.

        1. I expected that. It doesn’t mean we’ll see frozen stuff, but what it indicates is the bias of the guidance right now to put things too far N & W initially.

  11. This winter is a huge underdog trying to pull off an upset win on the road. It needs to cash in on opportunities it gets otherwise it will be blow out loss on the road.

  13. Thank you as always, TK!

    Getting ready for the earliest sunset of the year in a little while.
    4:13…4:13:13 here in Taunton to be precise!

    1. 4:13 has come and gone! We’re getting out light back in the afternoon from now on till June!

      1. 4:11 here in Boston. I believe Wednesday (12/9) is the last before going back in the “other” direction.

  14. Hi all! I don’t have much in the way of weather commentary to add at the moment so I just thought I’d drop in to say howdy hi hi and that I hope you are all doing well and staying safe. 🙂

  15. Pretty awesome satellite shot zoomed in on SNE from earlier today clearly showing the areas with snow cover. You can really pick out the spots where elevation made all the difference, especially the ridges in western CT.

    https://imgur.com/lEhmwaU

  16. Beware steeping out this am . A little freezing drizzle out there it looks like. Sanders are out , so driving is a little slow . I hate ice

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