Friday May 22 2020 Forecast


DAYS 1-5 (MAY 22-26)

Summer preview today. High pressure will have completed its journey from Canada to southeast of New England, and today the winds come around to mainly a land breeze (southwest), except along the South Coast and especially Cape Cod & the Islands where this wind is still off water. While many areas reach or exceed 80, some for the first time this season, those South Coast locations will not. Everybody turns much cooler Saturday as a frontal boundary drops down from the north and a bit of a squeeze play will be on between a new area of high pressure in eastern Canada and an old low pressure system which has been stuck to our west and south finally trying to make a run at southern New England. It will increase the cloud cover for a time tonight into Saturday and push some of its rain to about the South Coast, but it will really get no further than that before being pushed back to the south by the Canadian high, which will re-grain and retain control through the balance of the Memorial Day Weekend. Sunday will be the coolest day with a continued easterly air flow, which will then relax and turn more southerly on Monday as the high center, like its predecessor, slips to the southeast and will be located east of New England. This process will continue further by next Tuesday when it will feel a bit like summer again for a good portion of the region.

TODAY: Sunshine but increasing high clouds late. Highs 75-85 except 68-75 immediate shoreline and 61-68 South Coast with coolest over the islands. Wind SW 5-15 MPH, gusts 20-25 MPH.

TONIGHT: Clouding over. Lows 53-60. Wind SW 5-15 MPH.

SATURDAY: Mostly cloudy morning with a period of rain possible near the South Coast. Partly sunny afternoon with a late-day increase in sun north to south. Highs 62-69 occurring by midday then turning cooler during the afternoon.. Wind shifting to NE 5-15 MPH, gusts 20-25 MPH.

SATURDAY NIGHT: Clear. Lows 38-43 interior with coolest in valley locations, 43-48 coast. Wind E 5-15 MPH coast but near calm interior.

SUNDAY: Sun and high clouds. Highs 58-65, coolest coast. Wind E 5-15 MPH.

SUNDAY NIGHT: Partly cloudy. Patchy fog interior lower elevations. Lows 40-47. Wind calm.

MONDAY – MEMORIAL DAY: Partly sunny. Highs 62-67 coast, 68-73 interior. Wind SE up to 10 MPH.

MONDAY NIGHT: Partly cloudy. Lows 53-60. Wind S under 10 MPH.

TUESDAY: Mostly sunny. Highs 68-75 South Coast, 75-82 elsewhere. Wind SW 5-15 MPH.

DAYS 6-10 (MAY 27-31)

Temperatures above normal for this 5-day period. High pressure to the southeast of New England should be dominant with dry weather May 27-29, coolest temperatures interior lower elevations at night and coastal areas by day. A frontal boundary should be in the vicinity sometime during the May 30-31 weekend when the risk of showers and thunderstorms will occur.

DAYS 11-15 (JUNE 1-5)

A cooling trend for early June, but rainfall likely to average below normal.

22 replies on “Friday May 22 2020 Forecast”

  1. HHH makes its 2020 debut late next week into next weekend. We can never keep it away forever. Yesterday Eric mentioned heat wave? 🙁

    1. TK mentions coastal areas by day, as one location that can feature cooler temps during that 6 to 10 day period and I agree with him.

      The location of the surface high, as currently projected, probably will feature light SE winds near the coast, so, I’d venture highs in Boston and coastal communities to be in the 70s, before being held in check. Warm, but not the 80s that inland areas will see.

      Perhaps towards the end of that period, the day before the cold front arrives, there might be a day where the wind goes more SW or WSW and the very warm air goes right to Boston and the coastline.

      I also don’t think we’ll see oppressive dew points in this stretch, so, I think your largely safe from HHH during next week’s warm stretch.

  2. Thank you, TK.

    While I enjoy aspects of summer, the HHH part is not my cup of tea. I figure we’ve now entered a 100 day stretch in which HHH is possible on any given day but is not a chronic feature in SNE (usually). I do like that about Boston. It’s NOT Washington DC, for example, where HHH features much more prominently, and there isn’t much wind. NYC has much more HHH, too, and it’s only 200 miles from here, and DC about 400.

  3. Thanks TK.

    I do think there is at least a chance of an “official” heat wave at some inland locations Wednesday-Friday, though as of now I think it’s likely most if not all places fall a little short. Regardless, a hot stretch in a spring that hasn’t seen much hot weather.

  4. Thanks TK
    I did not think we would go the whole month of May without a blast of heat and humidity. Right now it does not look to have staying power.

          1. 81 at Logan as of this posting.

            Perhaps it is JPD with the “bad” thermometer? 😉

  5. Tomorrow is an intresting forecast, with bust potential. Certainly plenty of people going with a wetter / cooler trend. However, I will go with persistence. I think north of Hartford, Providence, Plymouth – precip will be scant. The further north you go – more sun you will see and inland temps could end up somewhat more mild than modeled with more sun.

    1. I agree and I was nervous with my temps on this forecast. Notice I brought a rain risk to the South Coast only. These things are always over-modeled, as is likely the heatwave potential for next week.

      NOT a classic setup.

  6. Portsmouth’s NH dp the last few hrs has dropped from 57F to 31F, as their winds have freshened from the NE.

    I got about ankle deep into the ocean yesterday and it was painful. Chilly afternoon along the coast coming.

    Its quite mild and borderline humid now 🙂

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