Thursday September 11 2025 Forecast (6:56AM)

40 Comments

DAYS 1-5 (SEPTEMBER 11-15)

The basically “non-event” low pressure passage yesterday leaves behind only some lingering clouds this morning on Cape Cod with a northeasterly air flow, otherwise high pressure builds in with a fair and warmer day. Tonight, a dry cold frontal passage takes place, with some clouds only. Canadian high pressure brings fair and cooler weather Friday-Saturday. Upper level low pressure drifts in from the northwest Sunday into Monday, bringing some unsettled weather – lots of clouds and a chance of convective showers. If the system arrives quickly enough Sunday and/or hangs around long enough Monday, the aid of solar heating can help some of those showers build enough to become thunderstorms and produce small hail. The details of that system are still a little uncertain but will come into focus.

TODAY: Morning clouds Cape Cod, otherwise sunshine dominates. Highs 68-75 coast, 75-82 inland. Wind NW up to 10 MPH with coastal sea breezes.

TONIGHT: Partly cloudy. Fog patches possible in low elevation locations. Wind variable to N up to 10 MPH.

FRIDAY: Mostly sunny. Highs 68-75. Wind N to NE up to 10 MPH.

FRIDAY NIGHT: Mostly clear. Fog patches possible in low elevation locations. Lows 43-50. Wind variable under 10 MPH.

SATURDAY: Mostly sunny. Highs 68-75, coolest in coastal areas. Wind variable up to 10 MPH with coastal sea breezes.

SATURDAY NIGHT: Mostly clear. Fog patches in low elevations once again. Lows 42-49. Wind variable under 10 MPH.

SUNDAY: Sunny start, then clouds arrive / develop. Isolated to scattered showers and a slight chance of thunderstorms in the mid to late afternoon. Highs 68-75. Wind variable 5-15 MPH.

SUNDAY NIGHT: Variably cloudy. A chance of showers. Highs 52-59. Wind variable up to 10 MPH.

MONDAY: Variably cloudy. Isolated to scattered showers until mid afternoon. Highs 67-74. Wind variable 5-15 MPH.

DAYS 6-10 (SEPTEMBER 16-20)

A quiet battle between high pressure nearby (mainly just to north) and low pressure to the south takes place, but we’ll likely be on the fair weather side through the middle of next week. Watching to the northwest for another front to pass through late week, with perhaps the chance of a shower then. Temperatures start cool, then moderate somewhat overall, but the pattern is the type that produces chilly overnight lows and milder daytime highs.

DAYS 11-15 (SEPTEMBER 21-25)

No big changes to the outlook here. Overall pattern looks drier over wet. Temperatures can be variable with a couple fronts passing by, but overall not too far from normal for the period.

40 thoughts on “Thursday September 11 2025 Forecast (6:56AM)”

  3. Wirdle: 5
    Simple every day word, but still took me 5 guesses. My starting words just didn’t yield much to go on…finally got there. Oh well.

    1. 4.

      I was going to say that it feels like they’ve been on a run of more relatable words lately.

      It’s been a while since the word has been one, where I’m thinking, “I’ve never seen that before or I didn’t know that was even a word”

      I feel like there was a stretch in August where that is what happened for me 2 or 3 times.

      1. 4 too. I think you are both right about every day words. I had two choices for three and went with the less common one. Hence the 4.

    2. Three for me.

      On the second guess, I had the last three letters. I checked after I solved it and, other than the answer, there’s only one other reasonable choice. Luckily I didn’t think of that one!

  8. Remembering the lives lost 24 years ago today. One of those moments where you never forget where you were when it happened.

    1. I, too, remember that day. I had taken my motherto the dentist and some workers outside our apt. bldg. had severl radios on at the same time. At the dentists ofc. my mother and me found out was going on and when we got home we heard the whole story. My husband workded in Boston at the time and was sent home early. It was a horrible day. Praying today for all who were lost and who helped. Thank you for posting this, Jimmy James.

      1. I had a 9:00 scheduled first meeting with the man I’d end up working with for twenty years. He was scheduled to fly to Paris the next day so received a call from a friend to see if he and his wife were flying.

        My first question when he said a plane had flown into one of the towers was if it was a delta. Mac’s sister was flying that day. I didn’t understand the entirety of the day till I headed home.

        I remember seeing the first tower collapse and thinking it was a simulation. It was all so unreal.

  10. Thanks TK

    What a generally incredible stretch of weather since mid-august. Great days, cool mornings and little to no humidity

    1. Old salty you live in JP right I always forget . I have been working in JP all week at one of the clinics.

        1. I don’t think I’m far , I’m on Bickford next to the stop & shop , just grabbed lunch from there . Very nice break from the busy main campus.

  16. You can tell NHC is bored when they start eyeing an area 2 days before it emerges from Africa and has literally about a 0.1% chance of developing during the next week. (They say 30%, but it’s not nearly that high, trust me.)

  17. Cold front approaching now. Stratocumulus of the scattered to broken variety accompany it and are moving into the northern part of the WHW forecast area now and will progress south southeastward this evening. There’s been a batch of cirrus clouds streaming northeastward ahead of all this, adding decoration to the sky. Wind shift later, cooler air follows.

    Our warm-ups are short-lived and weak. Boston is about 2F cooler than average through the first third of September.

      1. From a climatological perspective, yes, because that’s what happens annually. The specific weather pattern will probably remain on the cooler side of normal in general, but we’ll have our warmer days too.

  18. Thanks, TK.

    Remembering those who lost their lives on September 11th, 24 years ago.

    Also, I am quite worried about the current violence in our country. From a constant stream of school shootings to the horrific assassination of Charlie Kirk. America is in a bad place. I haven’t felt this despondent about our nation in my entire lifetime.

    There’s too much hate, vitriol, heated rhetoric, partisan media. Not enough uniting forces, healing, sensible guidance from our leaders. The dearth in real leadership on both sides of the aisle is frightening.

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