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New York, NY Local Forecast Office

10NM E Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:W wind around 21 kt, with gusts as high as 28 kt. A slight chance of rain before 1am.   Seas around 2 ft.

      W 21kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:WNW wind around 24 kt, with gusts as high as 37 kt. A slight chance of snow showers after 1pm.   Seas 1 to 2 ft.

      WNW 24kt
      1-2ft

    • Thursday Night

      Thursday Night:W wind 23 to 28 kt, with gusts as high as 38 kt. Partly cloudy. Seas around 2 ft.

      W 28kt
      2ft

    • Friday

      Friday:W wind 15 to 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 1 ft.

      W 19kt
      1ft

    • Friday Night

      Friday Night:W wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.

      W 12kt
      < 1ft

    • Saturday

      Saturday:W wind 8 to 11 kt increasing to 12 to 15 kt in the afternoon. Partly sunny. Seas 1 ft or less.

      ⇑W 15kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 13 to 16 kt. A chance of snow after 1am.   Seas around 1 ft.

      W 16kt
      1ft

    • Sunday

      Sunday:WNW wind 13 to 16 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 26 kt. A chance of snow.   Seas around 1 ft.

      ⇑WNW 20kt
      1ft

    • Sunday Night

      Sunday Night:NW wind 22 to 25 kt. Partly cloudy. Seas around 1 ft.

      NW 25kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 5:54 pm EST Dec 10, 2025
Forecast Valid: 10pm EST Dec 10, 2025-6pm EST Dec 17, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY...

Tonight
W wind around 21 kt, with gusts as high as 28 kt. A slight chance of rain before 1am. Seas around 2 ft.
Thursday
WNW wind around 24 kt, with gusts as high as 37 kt. A slight chance of snow showers after 1pm. Seas 1 to 2 ft.
Thursday Night
W wind 23 to 28 kt, with gusts as high as 38 kt. Partly cloudy. Seas around 2 ft.
Friday
W wind 15 to 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 1 ft.
Friday Night
W wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.
Saturday
W wind 8 to 11 kt increasing to 12 to 15 kt in the afternoon. Partly sunny. Seas 1 ft or less.
Saturday Night
W wind 13 to 16 kt. A chance of snow after 1am. Seas around 1 ft.
Sunday
WNW wind 13 to 16 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 26 kt. A chance of snow. Seas around 1 ft.
Sunday Night
NW wind 22 to 25 kt. Partly cloudy. Seas around 1 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: 40.72°N 72.98°W
Last Update: 5:54 pm EST Dec 10, 2025
Forecast Valid: 10pm EST Dec 10, 2025-6pm EST Dec 17, 2025
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