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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind 15 to 20 kt, with gusts as high as 26 kt. Snow, possibly mixing with rain after 10am, then gradually ending.   Seas around 4 ft.

      SW 20kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:SW wind 11 to 14 kt becoming WNW after midnight. Partly cloudy. Seas around 4 ft.

      SW 14kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:WNW wind 6 to 10 kt. A chance of snow after 1pm.   Seas around 3 ft.

      WNW 10kt
      3ft

    • Thursday Night

      Thursday Night:WNW wind around 6 kt becoming N after midnight. A slight chance of snow.   Seas 2 to 3 ft.

      N 6kt
      2-3ft

    • Friday

      Friday:N wind around 6 kt becoming SSW in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      N 6kt
      2-3ft

    • Friday Night

      Friday Night:S wind around 6 kt. Partly cloudy. Seas around 2 ft.

      S 6kt
      2ft

    • Saturday

      Saturday:SSW wind around 7 kt. Mostly sunny. Seas around 2 ft.

      SSW 7kt
      2ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 8 kt becoming NNW after midnight. Partly cloudy. Seas around 2 ft.

      NNW 8kt
      2ft

    • Sunday

      Sunday:NW wind 9 to 11 kt. Partly sunny. Seas around 2 ft.

      NW 11kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 1:23 am EST Feb 25, 2026
Forecast Valid: 7am EST Feb 25, 2026-6pm EST Mar 3, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Today
SW wind 15 to 20 kt, with gusts as high as 26 kt. Snow, possibly mixing with rain after 10am, then gradually ending. Seas around 4 ft.
Tonight
SW wind 11 to 14 kt becoming WNW after midnight. Partly cloudy. Seas around 4 ft.
Thursday
WNW wind 6 to 10 kt. A chance of snow after 1pm. Seas around 3 ft.
Thursday Night
WNW wind around 6 kt becoming N after midnight. A slight chance of snow. Seas 2 to 3 ft.
Friday
N wind around 6 kt becoming SSW in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Friday Night
S wind around 6 kt. Partly cloudy. Seas around 2 ft.
Saturday
SSW wind around 7 kt. Mostly sunny. Seas around 2 ft.
Saturday Night
WSW wind 5 to 8 kt becoming NNW after midnight. Partly cloudy. Seas around 2 ft.
Sunday
NW wind 9 to 11 kt. Partly sunny. Seas around 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 40.57°N 73.57°W
Last Update: 1:23 am EST Feb 25, 2026
Forecast Valid: 7am EST Feb 25, 2026-6pm EST Mar 3, 2026
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