Saturday Forecast

62 Comments

8:30AM

DAYS 1-5 (MAY 26-30)
A little weather drama for the early part of the weekend termed the “unofficial start of summer” but more correctly termed “Memorial Day Weekend”. Whatever you want to call it, the weather will feel like mid summer for several hours today before a sharp back-door cold front puts an end to that, with estimate time of frontal passage in the 4PM-5PM zone for the NH Seacoast and northeastern MA, 5PM-6PM for the remainder of the North Shore through Boston, 6PM-7PM for the South Shore of MA, and 7PM or later for Cape Cod and the Islands through RI, with the boundary spreading westward and southwestward from there across the remainder of southeastern New England through the evening. You know the drill. In comes the marine area immediate behind it with a quick temperature drop at frontal passage then a slower drop and finally a level-off that will essentially put temperatures around 30 degrees cooler than their Saturday highs from late Saturday evening to sometime Monday morning (less of a contrast Cape Cod & Islands where it won’t be as warm to begin with). We’ll largely escape precipitation of any consequence during this holiday weekend, however it won’t be bone dry either. As is often observed with back-door fronts, showers and thunderstorms will travel southeastward across northern New England exiting via the Maine Coast, with a few stray ones possibly making it into southern NH and north central to northeastern MA. A pop up shower or brief storm is possible in any location an hour or so after the front passes but it’s low probability. As the front pushes even further south and west at night, it may trigger a few showers and storms that could reach eastern CT or RI but this is also fairly low probability. During Sunday, a disturbance passing south of the region may trigger additional showers and possible thunderstorms mainly in southeastern CT, southern RI, and Cape Cod MA with all areas vulnerable to patches of drizzle due to the marine air from Saturday night through early Monday. Drier air starting to work in may break the clouds during Monday with the day potentially ending much nicer than it begins. Once we get beyond the holiday weekend, high pressure and nice weather will settle in for Tuesday and Wednesday. Forecast details…
TODAY: Mostly sunny morning. Partly sunny afternoon. Becoming mostly cloudy northeast to southwest late day with isolated showers or thunderstorms possible, favoring southern NH and northeastern MA. Highs 76-83 South Coast and Cape Cod, 84-91 elsewhere, but a sharp temperature drop from northeast to southwest with the front with time estimates noted above. Wind SW to W 5-15 MPH, shifting to NE from northeast to southwest late-day possibly accompanied by a brief burst of wind up to 25 MPH.
TONIGHT: Overcast. Patchy fog and drizzle developing. Isolated showers/thunderstorms early. Lows 51-58. Wind NE up to 10 MPH.
SUNDAY: Overcast. Patchy fog and drizzle. Occasional showers favoring CT, RI, southeastern MA. Highs 53-60. Wind NE up to 10 MPH.
SUNDAY NIGHT: Overcast. Patchy fog and drizzle. Lows 51-58. Wind E up to 10 MPH.
MONDAY – MEMORIAL DAY: Overcast with patchy fog and drizzle morning. Clearing afternoon. Highs 62-68 coast, 68-75 interior by late day. Wind variable up to 10 MPH.
TUESDAY: Mostly sunny. Lows from the middle to upper 50s. Highs from the middle 70s to middle 80s, coolest Cape Cod.
WEDNESDAY: Mostly sunny. Lows from the upper 40s interior valleys to upper 50s urban centers. Highs from the middle 70s to middle 80s, coolest coastal areas.

DAYS 6-10 (MAY 31-JUNE 4)
Fair weather continues through May 31. An unsettled period of weather arrives early in June but it won’t be raining all of the time. Likely starts with a summer feel June 1 but a shower/thunderstorm threat as a front approaches late June 1 and moves through June 2. Unclear whether or not tropical moisture from the system in the Gulf of Mexico gets involved with this front, but it is a possibility. Watch for a temporary block to set up late in the period with wet weather to the south and cooler air to the north. Southeastern New England may end up between the 2, or the cooler air may win out and keep the moisture to the south. Low confidence forecast and much to resolve.

DAYS 6-10 (JUNE 5-9)
A cooler/unsettled period of weather is possible, but again low confidence here.

62 thoughts on “Saturday Forecast”

    1. I like it how you and SAK put weather events in the proper perspective with no hype. 🙂

          1. I have to head out and do some trimming of Bushes and grasses……can you tell I’m stalling 😉

  8. Good morning and Happy Memorial Day weekend to you all!
    Looking forward to watch Sean Newcomb throw at Fenway this afternoon.
    Torn between Sean getting the W and the Sox winning the game! I am wearing my Braves Newcomb tee-shirt and my Red Sox cap!!!
    There’s talk about Sean being named an NL all-star!

    Have a great weekend everyone with family and friends.
    God bless our vets, active military and first responders!!!

    1. What’s the current thinking on timing of the passage of the front and any showers at Logan? We’re right next door waiting on barrier coat drying on our sailboat with a coat of bottom paint to follow. We’re wondering how much more rain free time we have left. The bottom paint has to happen today.

      Thanks!

      1. I don’t think that area gets any showers with the front. Drizzle may arrive later tonight.

  14. Summer heat again out there today. Definitely a beach day if you’re near the water. Will be quite different tomorrow.

    First half of June is looking unsettled as well. TK’s forecast alludes to that. West-central US ridging and potential blocking to our north as well. Not a recipe for hot summer weather. Temps likely near to below normal, precip still up in the air but I’d tend to lean near to above normal for that.

    1. I agree. That said, I do not think it’s going to be a totally miserable pattern either. I think it comes in 2 stages before it changes again.

  15. I am not complaining if the hot summer weather stays away for the first half of June. With the school year going deep into June you don’t want hot days and hot classrooms.

  16. Can we be lucky enough to remain rainfree here. Yard work still in progress. Grandkids have been awesome amusing themselves and helping. They still want to set up the pool and at least start filling it

    1. I’m almost certain this front comes through dry just about everywhere in MA.

  19. This radar images shows the boundary pushing Westward. It also shows some showers
    in NE MA and beyond.

    https://radblast.wunderground.com/cgi-bin/radar/WUNIDS_map?station=BOX&brand=wui&num=10&delay=25&type=N0R&frame=0&scale=0.3782608695652174&noclutter=0&showstorms=0&mapx=400&mapy=240&centerx=333.9080459770114&centery=483.2183908045977&transx=-66.0919540229886&transy=243.21839080459768&showlabels=1&severe=0&rainsnow=1&lightning=Hide&smooth=0&rand=25456227&lat=0&lon=0&label=you

  20. 80 and pretty windy from the NE. Actually, at the moment most refreshing.
    I won’t feel the same way later and tomorrow, but I am ready for it. 😀

    Big excitement for tonight. A trip to DQ for a blizzard. It sucks to get old!

  22. The boundary passed Logan at 5:45. The fresh breeze feels great after a day soent painting while wearing Tyvek suit.

  26. Wow. Front has to be going through or approaching. Wind is crazy. Air drier

    Awesome sitting outside

    1. waiting in line at DQ.
      1st went to Weymouth. 3 lines >30 persons each. screw that. now in Quincy. still long line, but not as bad.

      3. I prefer the Quincy one. I will have a small vanilla dipped in chocolate, please. Two knapkins, please. 🙂

        1. Yum. I like the cherry topping. They stopped that for a while. I don’t want to know why

  29. Kind of a strange occurrence as I didn’t see it on the radar. Must have dried up quickly.

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