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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WSW wind 28 to 31 kt decreasing to 24 to 27 kt after midnight. Increasing clouds. Seas 6 to 7 ft.

      WSW 31kt⇓
      6-7ft

      Gale Warning
      Gale Warning

    • Wednesday

      Wednesday:WSW wind 23 to 25 kt. Partly sunny. Seas around 5 ft.

      WSW 25kt
      5ft

    • Wednesday Night

      Wednesday Night:W wind 23 to 25 kt. Partly cloudy. Seas 5 to 6 ft.

      W 25kt
      5-6ft

    • Thursday

      Thursday:WNW wind 21 to 23 kt. Mostly sunny. Seas 4 to 5 ft.

      WNW 23kt
      4-5ft

    • Thursday Night

      Thursday Night:WNW wind 18 to 21 kt. Mostly clear. Seas 3 to 4 ft.

      WNW 21kt
      3-4ft

    • Friday

      Friday:WNW wind around 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 3 ft.

      WNW 19kt
      3ft

    • Friday Night

      Friday Night:NNW wind 17 to 19 kt. Partly cloudy. Seas around 2 ft.

      NNW 19kt
      2ft

    • Saturday

      Saturday:NW wind 13 to 15 kt. Sunny. Seas around 2 ft.

      NW 15kt
      2ft

    • Saturday Night

      Saturday Night:NW wind around 13 kt becoming WSW after midnight. A chance of rain.   Seas 1 to 2 ft.

      WSW 13kt
      1-2ft


Associated Zone Forecast which includes this point

Last Update: 1:09 pm EST Nov 11, 2025
Forecast Valid: 10pm EST Nov 11, 2025-6pm EST Nov 18, 2025

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Detailed Forecast

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

Tonight
WSW wind 28 to 31 kt decreasing to 24 to 27 kt after midnight. Increasing clouds. Seas 6 to 7 ft.
Wednesday
WSW wind 23 to 25 kt. Partly sunny. Seas around 5 ft.
Wednesday Night
W wind 23 to 25 kt. Partly cloudy. Seas 5 to 6 ft.
Thursday
WNW wind 21 to 23 kt. Mostly sunny. Seas 4 to 5 ft.
Thursday Night
WNW wind 18 to 21 kt. Mostly clear. Seas 3 to 4 ft.
Friday
WNW wind around 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 3 ft.
Friday Night
NNW wind 17 to 19 kt. Partly cloudy. Seas around 2 ft.
Saturday
NW wind 13 to 15 kt. Sunny. Seas around 2 ft.
Saturday Night
NW wind around 13 kt becoming WSW after midnight. A chance of rain. Seas 1 to 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: 40.53°N 73.44°W
Last Update: 1:09 pm EST Nov 11, 2025
Forecast Valid: 10pm EST Nov 11, 2025-6pm EST Nov 18, 2025
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