Wednesday April 23 2025 Forecast (7:49AM)

48 Comments

DAYS 1-5 (APRIL 23-27)

Mother Nature has been giving us example of “classic spring scenarios” recently, and today / tonight / tomorrow will fit that category as well. We start today with some filtered sun as a canopy of high clouds, the one that provided a beautiful sunset yesterday for many areas, continues to slide across the sky, eventually shifting offshore. Meanwhile, there are some coastal areas, particularly Outer Cape Cod, that can’t see this at all early this morning under a blanket of marine stratus. A wind shift to the northwest should push this offshore as well over the next couple hours, and that northwesterly air flow will also limit how much sea breeze takes place today, but ultimately many coastal areas do end up cooler than inland this afternoon with a light sea breeze. Tonight, high pressure settles right over the region, and with a clear sky, this is the perfect set-up for radiational cooling, when the warmth of the day radiates quickly away from the surface and we chill down quickly. Under this set-up, inland valley locations end up the coldest, so some of the areas that end up the warmest this afternoon will end up the coldest tomorrow morning – classic spring set-up. Thursday, with high pressure still over the region, the light wind will allow for a more prominent sea breeze in the coastal plain, setting up a larger temperature contrast between the coast and interior for high temps. Additionally, with inland areas being the warmest in the afternoon after being the coldest in the morning, we’ll get an example of the large temperature “diurnals” (difference between low temp and high temp) that can occur in the spring. So you see, there can be a lot of weather to talk about even when you have high pressure and fair weather dominating. Moving onward, we’ll see an increase in high and middle clouds later Thursday ahead of a warm front. This front may produce some scattered rain showers across southern NH and perhaps far northern MA at some point Thursday night, and will lead a warmer air mass on a southwesterly air flow into the region on Friday, but of course this air flow is a cooler one for the South Coast, particularly Cape Cod. Additionally, getting the warm southwesterly air flow into all areas for the day is not a complete lock. All it takes is the tiniest wave of low pressure to form on that front just to the north and it gets pulled back, with the help of marine air, southwestward as a back-door cold front. This is a possibility especially Boston northward on Friday, so something to watch for. Looking ahead to the weekend, the next round of unsettled weather is due on Saturday as a cold front sweeps across the region, trailing form low pressure passing to our north. I’m not expecting a wash-out of a day, but as it looks now, I think two rounds of showers will occur, one with a pre-frontal trough, the other with the cold front itself. Timing and details will be fine-tuned as we get closer. Sunday will be a breezy, cooler, dry day with a sun/cloud mix behind the front.

TODAY: Limited sun at first Cape Cod / filtered sun at first elsewhere. Brighter sun all areas midday on. Highs 57-64 I-95 eastward / south of I-90, 65-72 elsewhere. Wind NW up to 10 MPH with light coastal sea breezes.

TONIGHT: Mostly clear. Lows 33-40 interior locations, coldest in valley areas, and 40-47 coastal plain, warmest in Boston. Wind calm.

THURSDAY: Sunny morning. Partly cloudy afternoon. Highs 57-64, 65-72 inland, but a more notable temperature fall in coastal areas after midday. Wind variable up to 10 MPH with coastal sea breezes up to 15 MPH.

THURSDAY NIGHT: Variably cloudy with brief light rain possible northern MA and southern NH. Lows 45-52 evening, with a slow rise overnight. Wind SE shifting to SW up to 10 MPH.

FRIDAY: Sun/cloud mix. Highs ranging from 55-62 South Coast to 68-75 inland areas west of the I-95 belt. Wind SW 5-15 MPH.

FRIDAY NIGHT: Variably cloudy. Patchy fog. Lows 50-57. Wind SW 5-15 MPH.

SATURDAY: Variably cloudy with rain showers likely. Highs 60-67, cooler Cape Cod. Wind SW 10-20 MPH, shifting to W from west to east by late-day.

SATURDAY NIGHT: Clearing. Lows 45-52. Wind W 5-15 MPH.

SUNDAY: Sun/cloud mix. Highs 58-65. Wind NW 10-20 MPH.

DAYS 6-10 (APRIL 28 – MAY 2)

Dry with a warming trend early in the period. A more unsettled pattern arrives to end April and start May with some wet weather possible.

DAYS 11-15 (MAY 3-7)

Continued indications of blocking evolving with increase unsettled weather chances and variable temperatures with an overall cooling trend.

48 thoughts on “Wednesday April 23 2025 Forecast (7:49AM)”

  1. Thanks as always TK. I really like how you describe all that’s going on even when it might appear to some that nothing is going on.

    And I had to laugh at the way “scattered” was broken over two lines:
    “This front may produce some scat.”

      1. No worries. I’ll stop soon and start up again tentatively on November 1st and continue from there. ❄️ 🙂

        1. Nothing to do with Dr. S’s comment. I’ve been thinking about doing it anyway. I just figured that it’s now totally unrealistic for snow through at least mid-October, even in the Berkshires. I’ll see if I change my mind though. 🙂

  3. Good morning and thank you TK.
    Beautiful morning.
    Down to 44 earlier this morning and now it is up to 59 already
    surpassing yesterday’s high. Good Ole Spring in Coastal SNE!

  4. Funny, I haven’t looked at a model in over a week. 🙂
    What kind of weather enthusiast am I? I do have a bunch of other things going on like a major project at work. 🙂

  5. Barely up to 60 here. The temperature has risen 1 degree in 2 hours or so???????

    Logan is at 57 with WNW at 7. Sea Breeze on the way?????

  9. Thanks, TK.

    Relatively chilly day here. 54F at the moment. A light but steady rain overnight and this morning. Rain here is rarely heavy, certainly compared to Boston. More than 0.25 inch of rain in any given day is relatively uncommon. Then again, over a 365-day period, Boston has considerably more sun and totally dry days, especially in the fall and winter months. By the same token, there are many more days here in summer, fall, and winter when it precipitates, at least a little.

  10. The temperature is just NOT going up.

    ONLY 63 here and also at Logan, with NO sea Breeze yet.

    1. We were cool advecting while diurnally heating. There was a balance again for a while.

  15. Yesterday, the forecast did not go well near the coast. I over-forecast the westerly wind and therefore had temps way to warm at the coast (including Boston).

    What has gone right with today’s forecast? Everything.
    -marine layer pushed off the cape
    -high clouds thinned out / pushed southeast
    -general land breeze / limited sea breeze (there’s one on the South Shore of MA)
    -high temps are generally in the expected range

    What has gone wrong with today’s forecast? Nothing.

    I’ll take it.

      1. Oh believe me, there are plenty of instances where things went awry, and sometimes in a big way. 🙂

    1. Ice lasts well into spring there, and that area was pretty cold this winter. The above normal temperatures were further north – although that’s relative, because it’s still damn cold much of the time. The positive anomalies are actually common way north when we have colder winters, indicative of an often -AO.

      A well-performing climate model that looks many months ahead says that next winter’s temps may follow a similar pattern to the winter we just had. Lots of cold for the northeastern US.

      1. I hope not. But it is what it is. Nature seems to balance itself out with the extremes. Will our snow totals that under performed in some areas balance out? This upcoming winter? Time will tell us the answer.

        1. Well, we had a really long snow drought with a lot of below normal years strung together from the end of the 1970s to the start of the 1990s with isolated larger storms embedded in the stretch. So who knows, but odds certainly disfavor another really low snow winter. Time will tell.

  18. BREAKING NEWS: A woman has fallen to her death at Purgatory Chasm in Sutton!

    Vicki, are you familiar with that area?

    2. I’m very familiar. Sadly so. She was with three of her children. I heard a lot of sirens s. Horrific accident

  19. I just took a look at the Hampton beach web cam. This captured image shows what must be the work of extraterrestrials with very advanced technology. Not humans could do this! 🙂

    https://ibb.co/cSqRhggP

    2. The last couple days they have been bulldozing the berms down back to flat sand. 🙂

    1. Haha, I saw that. In the end, “Sheldon Cooper” continues as now a 4x Jeopardy Champion. 🙂

      Frankly, I’m surprised that by now Ken hasn’t mentioned his uncanny likeness of the actor and teased him about it unmercifully. 😉

  21. So who are people hoping for in terms of the 4th overall pick? That last week win really messed us up in terms of the draft. I am stuck in one hand I would like the best available which would be a running back Ashton Jeanty if Hunter or Carter is not available, but we also need an OT.

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