Wednesday July 30 2025 Forecast (8:04AM)

88 Comments

DAYS 1-5 (JULY 30 – AUGUST 3)

High pressure offshore provides one more day of heat for much of the region, but a weak wind field also will allow for more coastal sea breezes to develop, taking the edge off the heat for those locations. A west to northwest wind helped lower the dew point yesterday from around 70 to the middle 60s, in general, and while this is still humid, it sits below the oppressive category, and will generally hang out in the 60s through today. There are still patches of Canadian wildfire smoke working their way through in a northwesterly air flow aloft, so the sky will have a hazy look. While a cold front approaches, the instability and triggering mechanisms are limited, and it appears that the greatest chance for a few storms to fire up will be south of I-90, particularly southern CT, southern RI, and the MA South Coast west of the Cape Cod Canal, in the 3 p.m. to 8 p.m. time frame. Any storms that do develop here can produce brief torrential rain, small hail, and strong wind gusts, as well as cloud-to-ground lightning. If you have outdoor plans, be on the look-out should a storm develop near or approach your area. The storm threat ends by sunset and tonight will be a quiet, mild, humid night as the front settles through. The boundary then comes to a stop near the South Coast on Thursday, and sets up a situation where a wave of low pressure will keep our weather unsettled Thursday into Friday, first with some showers initiating somewhere in our region, then growing in coverage to a fairly widespread rainfall by Thursday evening into Friday early morning, before diminishing and pulling out of the region from northwest to southeast during the day on Friday. Significantly cooler air will arrive during this time, although it will remain relatively humid until the rain exits later Friday, after which drier air arrives. Clearing Friday night will then lead to a fabulous weekend as high pressure builds in, with seasonable temperatures and low humidity.

TODAY: Sunshine dominates. Clouds pop up this afternoon especially south of I-90 with isolated to scattered thunderstorms possible. Highs 88-95, except 80-87 many coastal locations. Dew point middle to upper 60s. Wind SW up to 10 MPH but developing coastal sea breezes.

TONIGHT: Clouds increase. Lows 63-70. Dew point 60+. Wind variable to N up to 10 MPH.

THURSDAY: Cloudy. Isolated to scattered showers develop morning-midday, becoming more numerous to eventually widespread afternoon-evening. Embedded downpours possible with a slight chance of thunderstorms. Highs 73-80. Dew point 60s. Wind NE to E up to 10 MPH.

THURSDAY NIGHT: Cloudy. Widespread showers. Areas of fog. Lows 61-68. Dew point 60+.

FRIDAY: Cloudy with showers gradually diminishing northwest to southeast, followed by breaking clouds / partial clearing with similar trend. Areas of fog early. Highs 68-75. Dew point 60+. Wind E backing to N 5-15 MPH.

FRIDAY NIGHT: Clearing. Patchy fog. Lows 56-63. Dew point falls into 50s. Wind N to NW up to 10 MPH.

SATURDAY: Mostly sunny. Highs 76-83. Dew point sub-60. N up to 10 MPH with coastal sea breezes developing.

SATURDAY NIGHT: Mostly clear. Fog patches interior lower elevations. Lows 55-62. Dew point sub-60. Wind calm.

SUNDAY: Sunny. Highs 77-84. Dew point sub-60. Wind variable up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 4-8)

High pressure will be dominant with fair weather and typical summertime temperatures across the region for this 5-day period.

DAYS 11-15 (AUGUST 8-12)

High pressure focus shifts off the Atlantic Coast heading toward mid month, with a pattern that would feature higher humidity and a slightly better chance to see some shower and thunderstorm development at times.

88 thoughts on “Wednesday July 30 2025 Forecast (8:04AM)”

  1. Thanks TK !

    Thinking of you and your family today.

    May the day have opportunity for a lot of wonderful memories and stories about your mom.

  2. Yesterday’s 99F at Logan was the 10th (90F+) day of July.

    June had 5.

    Taking a quick peak at the Euro, there seems to be opportunity for more later in the 360 hr run.

    Back to July, the month’s temp anomaly is only +2F, so, there’s been some cool days mixed in too.

    1. took me five. I was stumped for a while.
      These things still look like a jumbled mess to my brain.
      It is very difficult for me. I am amazed I have been doing as well as I have (which obviously has much room for improvement still).

        1. I think today’s word was a tough one. Just my feeling anyway.,

          I wonder what the stats look like? Wish I knew how to get those. Sclarke???

          1. DUH!!!!

            It says right on it that it was for yesterday, 7/29.
            WIll check stats later for today.

            1. I wonder how it works. I’ll keep checking through the day …if I remember…..to see when it is updated. The wording is a bit misleading

    2. That’s an amazing leap on the fourth guess!

      I got it in 5. On the third guess, I still had only one correct letter.

      I’ve never seen the stats not available earlier in the day like that. You have the correct link.

  9. Logan already has a very very light sea breeze at 3 mph.
    BUT, the wind is coming in from the ocean already. I suspect
    that the velocity will slowly pick up as the sun’s heating continues.

  10. DP down to 63 at Logan. It’s not really going to recover all that much today. There’s just not a lot of soupy air to re-deliver before the cold front comes. Of course once the cold front comes, the DP kind of just hangs out around 60 or a little over anyway into Friday until the low pressure wave goes by, but still, that’s not super-humid air. It’s just “kind of humid” by New England summer standards, and with temperatures falling below normal Thursday and Friday, it takes the edge of the ability to feel it.

    Summer 2025 so far. 15 days of 90+ at Boston, but only 2 heatwaves. The record for one summer is 5. But this isn’t really a particularly hot summer so far, overall. I’d categorize it as “slightly hot”. The temperature for summer to date (starting in June) is only departed from the long term average by +1.8F (at Boston, and not all that different in much of the region). That’s not super-significant. So if you see people posting on social media things like “hottest summer ever”, they are incorrect, and being dramatic. 😉 Not even close.You want a hot summer? Try 1983: +3.2 including a +5.0 departure in September! Oh yes, and let’s not forget that Boston had 30 days of 90+ heat … THIRTY … including a high of 99 on September 11, just days before the autumnal equinox.

  13. WBZ 1030, the Drama Station…

    Referring to the brutal heat in Boston this morning.
    8:45 a.m.: Temp 81, dew point 63. Ooo, brutal!

    I wish there was a way for the former owners to come back and take it over again. 😉

    1. Idk TK. I stopped listening to its weather decades ago because it was so dramatic.

  17. 85/70. Low of 65. The sun is so hot. Even after a couple of minutes. My heart aches for anyone working outside.

    My front door was so hot when I just tried to close it that I was afraid I’d burn my hand

  18. Already saw human induced climate change blamed for the tsunami at least 3 times.

    My goodness, people are becoming more stupid by the day. Haha!

    Even saw a post about an unprecedented interaction of a tsunami and a tropical cyclone. That’s wrong too, many times over.

    1. People believe that climate change could cause a tsunami?

      Of course, the eruption of the Klyuchevskaya Sopka volcano after the earthquake, that’s definitely from climate change. 🙂

      1. That blame label is literally getting slapped on everything, including things that are not even remotely connected.

        Seen it for earthquake / tsunami, volcanic eruptions, solar eclipses, the aurora, and comets.

        And no, none of that is a joke. I’m dead serious. It’s alarming the ignorance that exists.

        2. It is alarming that because of that ignorance there are people who think the climate is not changing because of it. I’ve mentioned heather cox Richardson on here related to political chat. But she lives in Maine and her husband is a long time lobster fisherman….not sure that is the correct title. She said last night that when things calm down a big politically, she wants to write about how the coast of Maine and the ocean off the coast is being impacted. She is a brilliant woman, does extensive research and sources everything. I am looking forward to reading it. Of course Harvey Leonard’s CC presentation is also a favorite of mine.

    2. I’ve seen people say it was a man made earthquake. This is where social media fails terribly. Too many grab onto ridiculous comments and then share them as truth. And sadly, it creates a remarkably incorrect belief that we are not warming at an alarming rate. We truly are a ship of fools

  19. As of 11:00 a.m.

    Temps 76-88 across the WHW forecast area. Cool spot is Cape Cod. Warm spot is FIT.

    Dew point 63-68, with a few lower 70s confined to Cape Cod.

    Been outside alot in Woburn and Reading so far. Hot sun, but air not too tough to take. 🙂

  20. Thanks, TK:

    90 as we approach the noon hour.

    TK, once again, please know of my thoughts and prayers for you and your family today and tomorrow. May the events be a true celebration of an incredible woman filled with stories, memories, laughter and love.

    1. I gave them 86 today. Let’s see if the can manage a pre-frontal wind shift and late day jump.

      1. time will tell.
        I presume I’ll make 90 here. Not far to go, but if that
        sea breeze gets a little stronger, might not make it.

      1. Is it near the coast? So many times it was well into the 90s inland when we were at Hum yet wonderfully comfy at the coast

  26. 81 @ Logan now. No chance to rise with the current wind direction.

    Interestingly enough, all the short range guidance had this. I thought it was a relatively safe call to forecast a decent chance that this and other coastal locations may stay under 90. (Granted, the day is long from over, and this is not a guarantee, so we’ll see.) I do feel OK with this forecast, including being the outlier compared to all of the Boston media last night (and even some this morning – that I saw). One of my other colleagues also was keeping Boston under 90 today.

    1. They just kind of broad brushed it today. I don’t think much will happen in SNE other than the areas I mentioned in my discussion.

  33. Sox have won their last 2 series, 2-1 and did a real good job doing that in this series, on the road, after having lost the 1st game of the series in the 9th.

    I think it’s the Astros next at Fenway.

    Credit to the GM Breslow, Giants have the worst record in MLB since the Devers trade and the Sox have been doing really well.

  34. Discounting that 4pm Logan temp.

    How could the wind have increased from the east at 15 mph and the temp rose to 87F ?

    That seems suspicious.

  36. TK – I have been away from the blog,. I will simply offer hope, love and peace to your family as you mourn your mother, then remember and celebrate her life well lived.

  37. Get ready for a possible “six o’clock jump” at Logan. They very well may get to 90 yet.

    Curtesy of former met Todd Gross! 🙂

  39. We have the concert on Sutton green tomorrow night. Is it still looking as if there will be a rain postponement?

  40. Logan finally flipped to west and jumped to 90 degrees….at 9:45pm. Can’t say I’ve seen that before.

      1. According to NWS Climo data, it was 8:50 pm. I had no idea that could occur well after sunset. Off the top of my head, I believe sunset now is just a few minutes after 8 pm.

        It would seem that Todd’s “six o’clock jump” has moved up a couple hours. 😉

        1. A significant temperature jump can occur quite late in the evening, but it’s the fact that the # started with 9 and not 8 that caught attention. It goes into the category of 90 looks a lot different than 89, but 89 and 88 look about the same, yet the difference between each in both pairs is identical. We have a bit of an obsession with round numbers. That said, seeing a jump that high that late is unusual, but also dependent on the precise wind direction and the reservoir of air upstream of the observation site. In this case, a good old urban heat bubble was awaiting transport to the airport, and it happened just enough to get the temp to 90 for a short time. While this was happening, it was 75 just up the coast at Hampton Beach.

          Having temps that high at Logan at night is not something you see often, however it’s far from unprecedented, as a look back in the location’s history will show.
          Example: On a July 4 in the early 1990s (may have been 1990), the temp at Boston at 11:00 p.m. was 91.

          1. I remember that day. Daughter was showing at Farmington CT and much to her trainers upset pulled her horse from the competition because of the heat. It was the beginning of the end with that trainer.

            A pony collapsed and died in the show ring that day

        2. I mostly make the comment tongue in cheek since I know it was well past six but thought it was interesting nonetheless

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