Thursday August 13 2026 Forecast (7:11AM)

84 Comments

DAYS 1-5 (AUGUST 13-17)

Low pressure will pass north of our region today. Its warm front moving through this morning with a couple areas of showers and embedded thunderstorms, but focused toward the South Coast and parts of southern NH to northeastern MA while not much happens between those areas. We’ll have a spike of high humidity again today in the warm sector before the low’s cold front moves across the region late today and early this evening. With drying at mid levels of the atmosphere, I am only expecting isolated to widely scattered showers and thunderstorms in association with the cold frontal passage, despite the return of sunshine ahead of it. This front leads a drier air mass into the region on Friday, which will still be a warm day. A secondary cold front will charge through the region early Friday evening with a batch of clouds and perhaps a few showers, maybe even an isolated thunderstorm, with the focus of this activity looking like it will be west and southwest of Boston. The weekend will feature dry and comfortable weather as an area of high pressure moves in from Canada Saturday before sliding offshore to the southeast later on Sunday. Low pressure heads into the Great Lakes during Sunday and we’ll see increasing clouds ahead of it later Sunday, with a couple rounds of showers and possible thunderstorms as this system moves across our region later Sunday night and Monday, with more precise timing and details of this unsettled weather to be determined.

TODAY: Clouds dominate the morning with showers and embedded thunderstorms in southern NH & northeastern MA as well as the South Coast region and just the chance of a brief shower elsewhere. More sun this afternoon with a passing shower or thunderstorm possible. Highs 80-87. Dew point spikes near 70. Wind S to SW increasing to 5-15 MPH with a few higher gusts possible.

TONIGHT: Clearing. Lows 57-64. Dew point falls into 50s. Wind W 5-15 MPH.

FRIDAY: Sun and passing clouds, then more clouds late afternoon with a shower possible including the slight chance of a thunderstorm, favoring areas west and southwest of Boston. Highs 78-85. Dew point in the 50s. Wind W to NW 5-15 MPH.

FRIDAY NIGHT: Clearing. Lows 55-62. Dew point below 50. Wind NW up to 10 MPH.

SATURDAY: Mostly sunny. Highs 75-82. Dew point upper 40s to 50. Wind NW 5-15 MPH.

SATURDAY NIGHT: Mostly clear. Lows 53-60. Dew point near 50. Wind variable under 10 MPH.

SUNDAY: Sunshine, then increasing clouds later in the day. Highs 76-83, coolest coast. Dew point 50s. Wind variable up to 10 MPH with coastal sea breezes.

SUNDAY NIGHT / MONDAY: Mostly cloudy. Showers likely. Chance of thunderstorms. Areas of fog. Lows 65-72. Highs 73-80. Dew point rises into and through 60s. Wind S 5-15 MPH, higher gusts possible.

DAYS 6-10 (AUGUST 18-22)

West to northwest flow pattern looks mainly dry except maybe briefly unsettled August 20 or 21. Temperatures slightly variable but overall close to normal.

DAYS 11-15 (AUGUST 23-27)

One or two quick-moving systems can bring brief unsettled weather otherwise a mainly dry pattern continues into late month.

84 thoughts on “Thursday August 13 2026 Forecast (7:11AM)”

  1. Good morning and thank you TK

    70 up from 69

    Ocean: 69

    Wordle; 2

    Looks like it did not rain a drop here overrnight. If it did, it was light enough that there is no evidence of it having rained.

      1. thank you. Fortitous 1st guess landed me 3 in position and 1 out which is effectively 4 in position. Piece of cake from there. 🙂

        1. That must have been nice, right after hitting enter to see all those green and 1 yellow appear.

          1. Indeed, it was!! I immediately went to, yes, I “should” be able to get this in 2. 🙂

  2. Thanks TK! Ran the first half of my run south and west this am and many dark clouds towards Portsmouth and Bristol. On way back to the north and east sun braking through clouds. We are right on edge of heavy rain

  8. Thank you, TK

    70/67 low of 64. Hoping for a day soon where I can turn AC off and open all windows.

    I’m happy to be joining Tom and SClarke today

    Wordle 4

        1. I got the 1st letter in postion, but 2nd letter was in the word but out of postition (yellow), 3rd and 4th letters were in position. 5th letter not in word. So put that all together and I end up with letter 1, 3,4 and 5. All I had to do was find the correct letter for the 2nd position, which was a piece of cake.

          Bottom line. 1st guess is critical in scoring well. Can’t always have a great 1st guess. Impossible. 🙂

    2. Wow!!! Would take some serious wind to cause that damage.
      Of course, we do not know the nature of the construction.
      That can make a huge difference in the amount of wind necessary for that damage.

      At first glance, it looks like a tornado may have caused it and was missed by all concerned. I say looks like (Not definitive). NWS will determine that upon inspection.

        1. If it was a microburst, it would have been a pretty significant one, like 90-100 mph or more.

  11. From Ryan hanrahan. Damage to lighthouse point park in New Haven
    WOW! Last night’s thunderstorm produced a 103mph wind gust in New Haven at Lighthouse State Park Sadly there is tremendous damage to the park including to the historic carousel building

    1. Wow. I thiught I saw a few warned areas down that way before I went to sleep. But you’d know far better than I would

    1. Thank you I think I’m in the none area. Maybe the small water areas around here that are empty are typical for this time of year. But I’m surprised to see it say none.

  19. Good afternoon WHW readers, commenters, and lurkers… 🙂

    Today’s weather is behaving mostly as expected, EXCEPT that the higher spike of dew points I thought we’d experience didn’t really pack much punch at all, was very short-lived, and really only lingers around the immediate South Coast & Cape Cod where the dew points are around 70. There’s a quick drop-off to dew points in the 60 neighborhood up around Boston and nearby suburbs.

    As was expected, the morning’s shower and t-storm coverage, while not significant, was more notable than what’s going on this afternoon when we just see isolated activity. However, if you’ve been caught under one of those isolated cells, it’s poured pretty hard.

    The forecast for now is unchanged. I am monitoring for a faster incoming system later Sunday, but right now I like my timing on it of nighttime into Monday wet weather threat with a dry Sunday daylight, despite the increase of clouds.

    Looking into next week, Monday & Thursday look like the two unsettled days in a pattern that features more dry days than not, and a continued lack of major heat. And now we’re getting toward the time of year where long-lasting hot spells are less likely. That’s not to say we can’t have hot spells. The lasting ones are less likely once we reach mid August and beyond. And we’ve reached mid August…

    1. Oh yes, I forgot to mention until after I hit send…

      2 1/2 months to go before the NAM is gone forever, along with HiresW, HREF, and SREF. Start saying your goodbyes!

      HRRR is remaining on the model team for now.

      RRFS & REFS become fully operational on October 6.

  20. Tropical Topics…

    Cristobal is post-tropical. See ya!

    2 other areas in the MDR being watched with moderate chances for development in the next several days. Well, it is that time of year where it’s more likely. Just don’t have great conditions to support much. A long Saharan dust season and the ongoing El Nino have pretty much put the lid on the season so far.

    Meanwhile, in the Pacific, TS Hernan is set to drift south and dissipate far east of Hawaii and is a non-factor. TS Lala poses a minor threat to the big island of Hawaii in 2 days, but it just looks like a period of heavier rain and some gusty winds especially for southern areas. The trend on this system has been more to the south with time and I’m not expecting much impact on the remainder of the island chain. Lala may strengthen once it’s beyond Hawaii and has the chance to become a Central North Pacific hurricane.

  23. HiresW might be a soon-to-be retired weather model, but Hires was also the root beer that Grandpa and Grandma served us during our visits to their Foxborough home.

    Like the weather model, Hires is also retired. Sadly, I don’t think you can get Hires anymore.

    Lala has to be my all-time favorite tropical cyclone name.

    Elton John’s “Crocodile Rock” has been in my head all day.
    La, la-la-la-la-la
    La-la-la-la-la
    La-la-la-la-la

    🙂

    2. Apparently, you can still buy the extract, and “make your own”. 🙂

  24. Drake Passage

    Update. This weekend wave heights in the Drake Passage will likely be below 2 feet. The probability of this occurring during their winter months is essentially 0%.

    Colliding oceans, lack of land masses, and ferocious winds make this scenario almost impossible. Sub-2-foot sustained wave heights in the Drake are historically non-existent.

  25. Thanks, TK.

    Record-breaking heat in the UK.

    Met4Cast – UK Weather on X: “It really is remarkable that we’ve seen 35°C reached in 4 consecutive months, May, June, July, August, the previous record was 2. We’ve also now beaten 1995 for most days >30°C ever recorded. Today marks the 9th day this summer where temperatures have reached 35°C, previous https://t.co/YL70zXNRCX” / X https://share.google/naYO5hPfn71YMa6iS

  28. I am hoping Darien, CT will be heading to the LLWS. They play NJ tomorrow night. Last year Fairfield CT made it to the U.S. Championship game. CT has not had a Little League World Series Championship team since Trumbull in 1989.

    1. I’ll watch. Do you know the time? If not I can find. Wishing CT great luck.

      Not sure if I posted here. Lincoln RI is where my son and DIL live. His neighbor and my grandsons friend was pitcher. Sadly they lost

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