Monday March 15 2021 Forecast (7:30AM)

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DAYS 1-5 (MARCH 15-19)

Beware the Ides of March, that is, beware you don’t freeze out there today! It’s a cold one, with yet another core of arctic air crossing the region. It surely has not been the coldest winter, though we’ve had our cold shots. This latest one, along with its wind, peaks today before easing up. Other than a few spot snow flurries first thing this morning from a touch of instability, it will be a dry day with sunshine and some passing clouds. Our ever-increasing March sun angle and the fact the sun now sets late in the 6 p.m. hour will definitely prevent it from feeling fully like mid winter though, despite the wind and cold. We’ll have a cold but more calm night tonight and Tuesday will still be a chilly day as clouds move in ahead of approaching low pressure. But this low will be running into a wall of dry air and won’t be able to produce much more than a touch of light snow mainly south of I-90 tonight into early Wednesday before falling apart, leaving Wednesday (St. Patrick’s Day) as an ok day. Another low pressure area makes a run at the region later in the week as we see a temperature moderation, so some rain should be moving into the area later Thursday. However, much colder air will be nearby, and will start to work back in Thursday night into Friday, turning whatever moisture is left to fall back into snow, though it should be on the light side before dry air re-takes control later Friday as this system starts to pull away from the region.

TODAY: A few light snow showers around eastern MA early this morning, otherwise sun & passing clouds. Highs 25-32. Wind NW 10-20 MPH with higher gusts.

TONIGHT: Clear evening. Increasing clouds overnight. Lows 11-18. Wind N 5-15 MPH, diminishing.

TUESDAY: Mostly cloudy. Highs 35-42. Wind variable 5-15 MPH.

TUESDAY NIGHT: Mostly cloudy. Some light snow possible mainly south of I-90. Lows 25-32. Wind variable up to 10 MPH.

WEDNESDAY: Partly sunny. Highs 42-49. Wind W 5-15 MPH.

WEDNESDAY NIGHT: Variably cloudy. Lows 25-32. Wind SW up to 10 MPH.

THURSDAY: Clouding up. Chance of rain late. Highs 48-55. Wind variable up to 10 MPH.

THURSDAY NIGHT: Cloudy. Periods of rain, changing to snow from north to south. Lows 25-32. Wind variable becoming N 5-15 MPH.

FRIDAY: Cloudy with a chance of snow morning, tapering to snow showers before ending early afternoon. Breaking clouds later. Highs 35-42. Wind N 10-20 MPH.

DAYS 6-10 (MARCH 20-24)

Spring Equinox occurs early morning March 20, and high pressure should build in for fair and generally nice weather by March standards for the March 20-21 weekend. Dry weather should continue into early next week before some unsettled weather arrives near the end of the period, but it looks like a mild pattern at that time with colder air staying up in Canada.

DAYS 11-15 (MARCH 25-29)

Some Canadian cold may try to sneak back down into the region with the help of a couple disturbances, but the overall pattern continues to look drier than average.

39 thoughts on “Monday March 15 2021 Forecast (7:30AM)”

  6. It’s a tough morning if you are working outside like myself and the wind is not helping . Like I was saying last night the wind in pembroke was pretty intense lasting throughout the night . When you get a night like that my first thing in the morning is to make sure there is no damage as it was definitely that kind of wind gusts .

  12. My brother lives on the junction of Denver and Aurora and got 25 inches.
    With JPDave’s permission, I will send him 1 Cowabunga!

  16. Logan received 0.1 inch yesterday.

    Total snowfall to date updated = 38.5
    Departure from normal = 0.0

    NY = 38.6
    BOS = 38.5

  17. Could Boston get 0.2 to take the lead or will NY claim the title in this very tight race???

    2. Boston will not receive another plowing event this season not that your saying that . Winter is on the final push

  19. This could be. With the race so tight you only need 0.2 to win.
    With the 0.1 BOS will not have back to back March’s with no measurable snow.

  20. I forgot that we had anniversary snow last May 9. I remember the 1977….a lot more than last year in this area. And then of course April 29, 1987

  21. Thank you, TK.

    Beautiful day today. Always nice when you don’t expect to get another cold gem – and I didn’t after last week.

  24. With the higher sun angle this time of year it would have to snow hard to accumulate so that 10 inches is way overdone.

    1. So, models don’t those things, such as sun angle, into account? Meteorology, not modelology, right, TK?

      I am into bracketology tonight.

      1. Correct, and I am doing some bracketology myself. I don’t follow college basketball, but I do my brother’s pool every year for fun. 🙂

  25. Who do you have in your final four? I have filled out some of my bracket but will wait until Wednesday or early Thursday morning to complete it.

  26. I like Eric Fisher, but what he did this evening was a head-scratcher, calling the possibility of accumulating snow later this week “a more rare event in mid to late March.” What! It’s not rare at all around these parts. There have been examples of it 7 out of the last 10 years. He also noted some beautiful ice formation from Close Encounter beach in Eastham, saying that was rare in March. No it is not. It’s a little less usual to have temps in the teens on the Cape in mid March than to have accumulating snow. But it definitely happens.

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