Tuesday May 13 2025 Forecast (6:49AM)

26 Comments

DAYS 1-5 (MAY 13-17)

A slowly migrating Rex Block will result in slow weather changes heading through the balance of this week. As mentioned in the previous update, high pressure will try to hang on but drift to the northeast into Atlantic Canada. A surface high associated with the upper ridge has driven a weak back-door cold front into the region early today and this will result in a regional onshore (northeasterly) air flow, which will keep the coast cooler than inland areas. The same will generally be true for Wednesday and Thursday while we see the general air flow become easterly to southeasterly. This will be in response to the slow approach of a large but weakening low pressure circulation from the southwest – this being the low pressure portion of the aforementioned block. While the dry air wins the battle for a while, even allowing some sun Wednesday, eventually the moisture will increase enough to bring more dominant cloudiness and a shower chance Wednesday night and/or Thursday, and even more so as we get to Friday. By that time, a southerly air flow will have taken over, and it will become more humid as well. Any warm-up will be modest late week, and a southerly wind off the water south of New England means that it will be the South Coast’s turn to be ocean-cooled more directly on Friday. Saturday’s weather will be unsettled as we still have low pressure around while a disturbance from the west joins the party, increasing the shower chance. This does not look like a wet day from start to finish, but it’ll be a couple days before I can work out the timing of the best rain chances. Initially, I lean toward later over earlier, but don’t make any solid plans based on that idea at this point.

TODAY: Filtered sunshine through lots of high clouds. Highs 60-67 coast, 67-74 inland. Wind variable to NE up to 10 MPH.

TONIGHT: High clouds dominate. Lows 48-55. Wind NE to E up to 10 MPH.

WEDNESDAY: Limited sunshine / lots of clouds. Highs 60-67 coast, 67-74 inland. Wind E up to 10 MPH.

WEDNESDAY NIGHT: Mostly cloudy. Chance of a shower. Lows 52-59. Wind E to SE up to 10 MPH.

THURSDAY: Mostly cloudy. Chance of showers. Highs 59-66 coast, 66-73 inland. Wind SE up to 10 MPH.

THURSDAY NIGHT: Mostly cloudy. Chance of showers. Lows 53-60. Wind S up to 10 MPH.

FRIDAY: Mostly cloudy. Chance of showers. Highs 62-69 South Coast, 69-76 elsewhere. Wind S 5-15 MPH.

FRIDAY NIGHT: Mostly cloudy. Chance of a shower. Patchy fog, Lows 55-62. Wind S 5-15 MPH.

SATURDAY: Mostly cloudy. Showers likely, favoring the afternoon or evening. Highs 62-69 South Coast, 69-76 elsewhere. Wind S up to 10 MPH becoming variable.

DAYS 6-10 (MAY 18-22)

Low pressure shifts east of the area by the end of the weekend with cooler air and only a chance of a few passing showers May 18. High pressure builds in for fair weather May 19-20. Next round of unsettled weather follows for the middle of next week as low pressure returns.

DAYS 11-15 (MAY 23-27)

A cool northwesterly air flow is expected to dominate with mostly dry weather and one or two opportunities for passing showers. This time frame includes Memorial Day Weekend (May 24-26).

26 thoughts on “Tuesday May 13 2025 Forecast (6:49AM)”

  2. Thanks TK !

    Well, we await news on Jayson Tatum’s achilles tendon.

    I hope next season isn’t lost too.

    1. achilles tendon is a very serious injury and it takes forever to recover. NOT GOOD!!

  3. Thank you, TK.

    Warming up in Nuuk. It’s up to 30F today. https://x.com/OJoelsen/status/1922248569932623959

    I’ve been fascinated with Greenland since I was about 6. It’s a weird obsession. I am aware. My obsessions also extend to other faraway places like the Northwest Territories, Ellesmere Island, Labrador, and Siberia. I have no such obsession with respect to places that feature heat and humidity. Not that they’re not interesting. It’s just that I can’t picture myself there. I can picture myself in the cold spots.

    My father used to tell me that Eskimo tribes like the Inuit wanted to be as far away from the rest of the world as possible. And so, they stayed in mostly uninhabitable places in the far north.

  4. https://www.pivotalweather.com/model.php?m=gfs&p=prateptype_cat-imp&rh=2025051300&fh=306&r=us_ne&dpdt=&mc=

    https://www.pivotalweather.com/model.php?m=gfs&p=sfct-imp&rh=2025051300&fh=306&r=us_ne&dpdt=&mc=

    Memorial Day Weekend may be the unofficial start of summer in much of the northern Hemisphere, but not eastern New England.

    It has been a warm spring, but I have no doubt rain, NE wind and temps in the 40s will be AT LEAST 1 day’s weather during the long weekend.

  5. A beautiful 67 here. How high will it get before it get knocked
    back by the NE breeze.

        1. Umm no!! it was 62 at the airport! sorry about that.

          NOW is is down to 66 here after reaching 69. East wind
          doing its job. 🙂

          Airport now: 63 with East wind at 14 mph.

    1. That Newfoundland storm was the same storm that moved through here Friday night into Saturday.

    2. Media has totally ignored this. All I’ve heard about is hot weather under the ridge in the south central US, and “9 million people under red flag warnings”, which happens quite often during the spring. I hate those “x number of million people” headlines with an absolute passion. 😉

  10. Only 60 here now and Oddly I was just out to the store and back and was perfectly comfortably with no jacket. I must be weird!
    Nice and Sunny out!

  12. Thanks to Tom’s teaching I got the petricor question on jeopardy. Thank you, Thomas!!

  13. Mark, thanks for sharing the New Foundland winter scene in mid May. Paradoxically, it warms my heart.

  14. I know everyone is thinking of Tatum’s achilles tendon as of what it means for Boston. This type of injury will likely sideline him for the entire 2025-2026 season. Achilles injuries even minor ones can take a very long time to recover. Its also one of the worst injuries a basketball player can have as the hard surface they play on can cause even more issues. It is very likely that Tatum will not be the player he was prior to this injury. Whats sad is that the type of person Tatum is a good overall dude that was in his prime. Will he be the next Brady in which a major injury doesn’t impact his play or will it, time will only tell but with the sport he is involved with the Achilles is one of the worst, I would even say worst than an ACL.

  15. Looks wet. I need more of the glorious sun from the last few days. Hopefully, we get a sun peek now and then. Thanks for the info.

    2. See? I didn’t even have to approve you, because you’ve written here before. 🙂 Be a regular!

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