Friday June 12 2026 Forecast (8:22AM)

57 Comments

DAYS 1-5 (JUNE 12-16)

High humidity remains in place today while a weak back-door cold front makes a visit from the northeast into southeastern NH and eastern MA, perhaps as far south and west and northern RI later in the day. A very weak disturbance is passing by aloft while this is all taking place. These ingredients bring the chance for some pop up showers and thunderstorms, though I do not expect coverage to be very high. We have a few showers to start today already in south central NH and a few southwest of Boston, but most of them will fade as the disturbance triggering them remains weak. The back-door frontal boundary can help trigger a few more as we move through the day, but again I would expect these to be isolated. Further west, outside of the front’s influence, a couple air mass showers and storms can also pop up. Bottom line for today: You’ll probably stay dry, but keep an eye to the sky (and on the radar) just in case. Inland is hottest while the coast gets some relief, but humidity is up regionwide, so muggy regardless. Tonight, a weakening frontal boundary moves through from west to east, but I only expect a couple of showers and thunderstorms to be possible as it moves through, with many areas missing out on those. The passage of this front does bring lower humidity for the weekend, especially Saturday when we have a northwest breeze transporting some Canadian air into the region. This is modified air, however, so it will still be quite a warm day. Sunday, high pressure shifts offshore and our wind turns southerly ahead of an approaching cold front, so the humidity levels tick up just a tad, but remain below oppressive levels. The southerly breeze will be active at times which will help help counteract the warmth and moderate humidity if you’re outside. The shower and thunderstorm threat increase from west to east at night as the front moves through the region, then offshore by early Monday when a shower can linger in far eastern areas to start the day. We’ll experience a cooler, drier northwesterly air flow behind the front on Monday, and a westerly breeze with moderating temperatures on Tuesday as high pressure slides to our south. Previous ideas about a wave of low pressure passing by to the south that day have shifted and that system would be well out to sea with a more progressive high sliding off the Mid Atlantic Coast at that time.

TODAY: Variably cloudy. A shower or thunderstorm possible – favoring south central NH early in the day, and favoring areas mostly west of I-95 in the afternoon but low coverage with most areas staying rain-free. Highs 77-84 coastal plain, 85-92 inland with warmest in central MA to southwestern NH. Dew point 65+. Wind variable to E 5-15 MPH coastal plain eastern MA & NH, SW up to 10 MPH further inland areas.

TONIGHT: Partly cloudy early, then mostly cloudy late evening and overnight with a shower or thunderstorm possible from west to east. Lows 63-70. Dew point 60+. Wind variable to S up to 10 MPH.

SATURDAY: Sun and passing clouds. Highs 82-89. Dew point falls below 60. Wind W to NW 5-15 MPH, a few higher gusts possible.

SATURDAY NIGHT: Mostly clear. Lows 60-67. Dew point sub-60. Wind W up to 10 MPH.

SUNDAY: Sun filtered by high clouds. Highs 84-91 except 77-84 South Coast / Cape Cod. Dew point creeps back over 60 by late-day. Wind S 5-15 MPH, a few higher gusts possible.

SUNDAY NIGHT: Mostly cloudy. A good chance of showers with possible thunderstorms from west to east. Fog patches. Lows 62-69. Dew point 60+. Wind SW 5-15 MPH, higher gusts possible especially around any storms.

MONDAY: Early clouds with a shower potential especially east, then a sun / cloud mix. Highs 78-85. Dew point falls into 50s. Wind NW 5-15 MPH.

MONDAY NIGHT: Mostly clear. Lows 56-63. Wind W under 10 MPH.

TUESDAY: Partly sunny. Highs 80-87 except cooler South Coast / Cape Cod. Wind W to SW 5-15 MPH.

DAYS 6-10 (JUNE 17-21)

Fair June 17 but clouds increase ahead of a warm front, which passes by early June 18 and sets up a shower and thunderstorm chance prior to the passage of a cold front as low pressure travels north of the region. Fair, breezy, cooler weather follows it June 19 then high pressure dominates with fair weather and a slow warming trend on the June 20-21 weekend. The Summer Solstice occurs at 4:24 a.m. EDT June 21.

DAYS 11-15 (JUNE 22-26)

Mixed signals from guidance and the pattern is a little hard to define in the early days of astronomical summer as we head into late June. I do see the tendency for a somewhat progressive pattern, and one or two disturbances bringing shower and thunderstorm chances. One question to answer is if a mid period low pressure wave brings us a shot of more substantial rainfall. Many details to-be-determined.

57 thoughts on “Friday June 12 2026 Forecast (8:22AM)”

  3. Thank you, TK. We are up to 74/71 from an overnight low of 70 with its lowest dp being 68. I understand it’s weather and not a thing that can be done to change. But I’m A bit concerned about this summer from both a health and financial standpoint. Lots of heat before we even see summer.

    Reply

    2. May I join you in the 4 car?
      Almost had it in 3 as I had the first 4 letters correct. Wordle
      did not like my 5th letter, so I had to try another word, which
      was successful. 🙂

      Reply

  5. Joshua, thinking of you and your son and sending hope that he is responding to the help he’s getting.

    Reply

  7. Good morning and thank you TK.

    80 here after a low of only 74 Dp 70

    Ocean: 60 (up 22 degrees since mid-late March)

    Wordle: 4

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    1. Correction: Dew point here now up to a DISGUSTING 71.

      We would have died yesterday without our 3 window units
      cranking out a total of 22,300 btus.

      Even with the ACs my wife can barely function in this weather.
      I tolerate it better, but as soon as I exert myself I am ready to drop dead. I HATE this weather!!!!!

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      1. I was wondering how Mrs OS was doing. She struggles so much more than I and I had a really tough time yesterday and especially last night

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  9. In Wordle I had the middle three letters correct on the 3rd guess and entered multiple-choice hell. I got it on 6.

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  11. Beautiful summer-feeling late spring morning. 🙂

    I had to go get bloodwork and while walking outside I always l notice how the scent of new flowering and leaf-out is more pronounced with an elevated dew point. It’s very calming for me.

    I have today off to get a few things out of my way in terms of health planning (2 appointments to schedule and 2 blood tests to get), and then I am heading to Mansfield for a mini tailgate before the DMB concert tonight. 🙂

    Reply

      1. I would have said the same when younger. But knowing how Mrs OS and others struggle and now struggling some myself (not close to Mrs OS), I have to agree with you.

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        1. I don’t struggle like my wife does, but at my age it CLEARLY bothers me OH SO MUCH MORE than it ever used to bother me before. I can take it ok, IF I am not active. If I do anything, like even taking the trash out, I am cooked.

          Reply

  12. And in case anyone is wondering, yes, Meta has a significant outage that is impacting their platforms worldwide.

    Reply

  15. Signs of weak BD?

    Portlan, ME
    Portsmouth. NH
    Beverly, MA
    Boston MA (Logan)

    All reporting a light sea breeze. However, a pretty sharp drop in temperature between Portsmouth and Portland where it is
    84 at Portsmoouth and 67 at Portland. So perhaps the sea breeze down this way is just a gradient issue and the real BD is somewhere between Portsmouth and Portland.

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    1. Portland has also been overcast longer than any other location and has received limited solar heating in comparison.

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        1. Somewhere between Seabrook and the base of Cape Ann and it will continue southwestward for several more hours.

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          1. Oh, good to know. MANY THANKS for that.
            Much appreciated.

            It will likely hit Logan, but will it get to my location. Hope it does. We shall see. Watching it and waiting.

            Reply

  16. Atlantic SST’s are much cooler than just 12 months ago.

    The media is so hyper-focused on the Pacific and ENSO that they are not going to mention what’s going on the Atlantic, so I will. 🙂

    Cool water, above normal Saharan dust, and El Nino driven wind shear should severely limit tropical development this season. I think many of the already conservative forecasts may be a bit on the high side.

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  22. Its 64F atop Mt Washington, that is a super warm airmass and practically the solstice sun, so the light E wind at Logan and on the north shore isn’t making a big dent in the temps (yet)

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  23. 90 here with dp 73 and heat index of: 98.6

    NO BACK DOOR here, at least not yet. Doesn’t even seem close.

    Reply

  25. According to NOAA, El Niño is now established and is expected to be the strongest on record.

    Does this mean many weather extremes ahead?

    Reply

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