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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WSW wind 5 to 8 kt. Widespread fog, mainly between 1am and 4am.  Seas around 4 ft.

      WSW 8kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Rain likely, mainly before 10am.  Areas of fog before 10am.  Seas 3 to 4 ft.

      ⇑SE 7kt
      3-4ft

    • Wednesday Night

      Wednesday Night:NE wind 5 to 10 kt becoming NNW in the evening. A chance of rain, mainly before 10pm.   Seas 3 to 4 ft.

      NNE 10kt
      3-4ft

    • Thursday

      Thursday:NE wind around 11 kt becoming E in the afternoon. Cloudy. Seas around 4 ft.

      NE 11kt
      4ft

    • Thursday Night

      Thursday Night:E wind 9 to 13 kt. A chance of rain.   Seas 3 to 4 ft.

      E 13kt
      3-4ft

    • Friday

      Friday:E wind 14 to 18 kt. Rain.   Seas 3 to 4 ft.

      E 18kt
      3-4ft

    • Friday Night

      Friday Night:NE wind 12 to 17 kt becoming N after midnight. A chance of rain before 1am.   Seas 4 to 5 ft.

      NE 17kt
      4-5ft

    • Saturday

      Saturday:NNW wind around 10 kt becoming WNW in the afternoon. Partly sunny. Seas 3 to 4 ft.

      NNW 10kt
      3-4ft

    • Saturday Night

      Saturday Night:NNW wind 9 to 13 kt becoming NNE after midnight. A chance of rain and snow after 1am.   Seas 2 to 3 ft.

      NNE 13kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 3:29 pm EST Feb 17, 2026
Forecast Valid: 6pm EST Feb 17, 2026-6pm EST Feb 24, 2026

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Detailed Forecast

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

Tonight
WSW wind 5 to 8 kt. Widespread fog, mainly between 1am and 4am. Seas around 4 ft.
Wednesday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Rain likely, mainly before 10am. Areas of fog before 10am. Seas 3 to 4 ft.
Wednesday Night
NE wind 5 to 10 kt becoming NNW in the evening. A chance of rain, mainly before 10pm. Seas 3 to 4 ft.
Thursday
NE wind around 11 kt becoming E in the afternoon. Cloudy. Seas around 4 ft.
Thursday Night
E wind 9 to 13 kt. A chance of rain. Seas 3 to 4 ft.
Friday
E wind 14 to 18 kt. Rain. Seas 3 to 4 ft.
Friday Night
NE wind 12 to 17 kt becoming N after midnight. A chance of rain before 1am. Seas 4 to 5 ft.
Saturday
NNW wind around 10 kt becoming WNW in the afternoon. Partly sunny. Seas 3 to 4 ft.
Saturday Night
NNW wind 9 to 13 kt becoming NNE after midnight. A chance of rain and snow after 1am. Seas 2 to 3 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: 3:29 pm EST Feb 17, 2026
Forecast Valid: 6pm EST Feb 17, 2026-6pm EST Feb 24, 2026
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