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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 12 to 17 kt. Partly sunny. Seas around 1 ft.

      NE 17kt
      1ft

    • Tonight

      Tonight:NE wind 12 to 16 kt. A slight chance of rain after 2am.   Seas 1 ft or less.

      NE 16kt
      < 1ft

    • Tuesday

      Tuesday:NE wind 17 to 19 kt. A chance of rain, mainly before 11am.   Seas around 1 ft.

      NE 19kt
      1ft

    • Tuesday Night

      Tuesday Night:NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

      NE 20kt
      1ft

    • Wednesday

      Wednesday:NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

      NE 20kt
      1ft

    • Wednesday Night

      Wednesday Night:NE wind around 21 kt, with gusts as high as 29 kt. Mostly cloudy. Seas around 1 ft.

      NE 21kt
      1ft

    • Thursday

      Thursday:NE wind 16 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas around 1 ft.

      NE 19kt
      1ft

    • Thursday Night

      Thursday Night:NE wind 17 to 19 kt, with gusts as high as 30 kt. A chance of showers.   Seas around 1 ft.

      NE 19kt
      1ft

    • Friday

      Friday:NNE wind around 20 kt, with gusts as high as 33 kt. A chance of showers.   Seas around 1 ft.

      NNE 20kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 9:44 am EDT Sep 21, 2026
Forecast Valid: 11am EDT Sep 21, 2026-6pm EDT Sep 27, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH

Today
NE wind 12 to 17 kt. Partly sunny. Seas around 1 ft.
Tonight
NE wind 12 to 16 kt. A slight chance of rain after 2am. Seas 1 ft or less.
Tuesday
NE wind 17 to 19 kt. A chance of rain, mainly before 11am. Seas around 1 ft.
Tuesday Night
NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.
Wednesday
NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.
Wednesday Night
NE wind around 21 kt, with gusts as high as 29 kt. Mostly cloudy. Seas around 1 ft.
Thursday
NE wind 16 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas around 1 ft.
Thursday Night
NE wind 17 to 19 kt, with gusts as high as 30 kt. A chance of showers. Seas around 1 ft.
Friday
NNE wind around 20 kt, with gusts as high as 33 kt. A chance of showers. 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: 40.91°N 73.39°W
Last Update: 9:44 am EDT Sep 21, 2026
Forecast Valid: 11am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
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