Monday March 17 2025 Forecast (7:38AM)

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DAYS 1-5 (MARCH 17-21)

We’ll have a wet St. Patrick’s Day today as a strong but slow-moving cold front moves west to east across the region and a wave of low pressure moves up along it, slowing its progress even more. It won’t be until tonight that we get rid of the rain from it, and sometime early Tuesday morning when we start to see clearing take place. But tomorrow does turn out to be a dry day with sun eventually returning, albeit with a gusty breeze as well. High pressure brings fair and more tranquil weather for Wednesday, but an increase in high clouds will be an indicator of the next approaching low pressure area. Spring arrives at 5:01 a.m. EDT with the occurrence of the vernal equinox on Thursday, but expect a mainly cloudy day with nighttime rain as low pressure and its frontal systems move into the region. This will bring a period of rain into Friday, which may end as mix/snow for some areas, especially interior higher elevations, as cold air arrives. A new low forms offshore and intensifies while pulling away via the Gulf of Maine, so expect a few lingering sprinkles of rain or flurries of snow with a gusty chilly breeze and breaking clouds Friday afternoon. The first full day of spring will feel a bit more like winter again…

TODAY: Overcast. Rain likely. Highs 53-60. Wind S 5-15 MPH, higher gusts.

TONIGHT: Cloudy. Rain ends evening. Patchy fog. Lows 33-40. Wind shifting to NW 5-15 MPH, higher gusts.

TUESDAY: Mostly cloudy start, then partly to mostly sunny. Highs 51-58. Wind NW 5-15 MPH, higher gusts.

TUESDAY NIGHT: Mostly clear. Lows 33-40. Wind NW to N diminishing to under 10 MPH.

WEDNESDAY: Mostly sunny. Highs 48-55 coast, 55-62 inland. Wind N up to 10 MPH shifting to E.

WEDNESDAY NIGHT: Increasing clouds. Lows 35-42. Wind E under 10 MPH.

THURSDAY: Cloudy. Highs 46-53. Wind SE 5-15 MPH.

THURSDAY NIGHT: Cloudy. Rain likely. Lows 38-45. Wind variable 5-15 MPH.

FRIDAY: Cloudy morning with rain possibly ending as mix and/or snow, especially interior higher elevations. Partly sunny with a passing light rain or snow shower possible afternoon. Temperatures steady 38-45, may fall slightly. Wind N to NW 10-20 MPH, higher gusts.

DAYS 6-10 (MARCH 22-26)

Upper trough and associated surface low / frontal system brings clouds and a brief precipitation chance later March 22 to early March 23. Cooler trend. More unsettled weather heading into next week – details TBD.

DAYS 11-15 (MARCH 27-31)

Cooler and unsettled pattern indicated for the end of March.

44 thoughts on “Monday March 17 2025 Forecast (7:38AM)”

  2. Thanks TK !

    Pouring now, as those yellows and reds on the radar have made it to Marshfield.

    Thankfully, it was mist earlier when I arrived at school.

  4. I had 1.04″ in my gauge before leaving the house at 5:30. Based on nearby obs, should be up around 1.50″ now. We’ll see when I get home around Noon.

    The Nashua River goes right by the office here and it looks to be quite a bit higher than when I left at 3pm yesterday. There was still a little ice on top in spots yesterday afternoon – not any more.

    2. FTR I did notice some brownish residue left behind by late day rain showers yesterday.

  12. Seeing it rain today reminded me… I tend to watch an episode of the tonight show with johnny carson before bed. Around the 70’s and early 80’s era. In a couple of his monologues he joked about acid rain. I remember that being a big fear of mine as a kid. I had totally forgotten about that.

    2. Acid rain was a big topic of research when I was going to college in Potsdam, NY in that time period. Potsdam is just north of the Adirondacks and the lakes in that area were in the firing line of acid rain from the Midwest.

  18. Interesting next week.

    500 mb low strengthening a bit as it passes underneath is.

    If that verifies, definitely higher elevations have a shot at some accumulating wet snow.

    Lower elevations, well, depends on how much the column aloft would chill out and if that gets overlapped with some heavier cells of precip to maybe create wet snow flakes in the air.

    2. Hey, Tom Posted the satellite loop for that earlier.

      I wanted to post that it looked tropical to me, but feared someone would rip me a new one for saying that. 🙂

  22. I mentioned 3 days ago that CPC would be shifting colder on their 8-14. Heading in that direction for the Great Lakes and Northeast.

    1. As you predicted it would on Friday. Hope the above normal precipitation holds as well. 🙂

      Would be a SHAME for wasted cold.

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