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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:ENE wind 10 to 12 kt. Cloudy. Seas around 3 ft.

      ENE 12kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:E wind 10 to 13 kt. Rain likely, mainly after 4am.   Seas 2 to 3 ft.

      E 13kt
      2-3ft

    • Friday

      Friday:E wind 13 to 17 kt. Rain.   Seas around 3 ft.

      E 17kt
      3ft

    • Friday Night

      Friday Night:NE wind around 9 kt becoming WNW after midnight. A chance of rain before 1am.   Seas around 3 ft.

      NE 9kt
      3ft

    • Saturday

      Saturday:WNW wind 7 to 9 kt becoming NNE in the afternoon. A slight chance of rain after 1pm.   Seas 2 to 3 ft.

      WNW 9kt
      2-3ft

    • Saturday Night

      Saturday Night:E wind 9 to 11 kt. A chance of rain and snow before 10pm, then a chance of snow.   Seas around 2 ft.

      E 11kt
      2ft

    • Sunday

      Sunday:ENE wind 12 to 16 kt. A chance of snow.   Seas around 2 ft.

      ENE 16kt
      2ft

    • Sunday Night

      Sunday Night:ENE wind 16 to 18 kt becoming NNE after midnight. A chance of snow.   Seas around 3 ft.

      NNE 18kt
      3ft

    • Monday

      Monday:N wind 14 to 17 kt, with gusts as high as 23 kt. A chance of snow.   Seas 4 ft building to 7 ft.

      N 17kt
      Waves Building7ft


Associated Zone Forecast which includes this point

Last Update: 1:10 am EST Feb 19, 2026
Forecast Valid: 3am EST Feb 19, 2026-6pm EST Feb 25, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

Thursday
ENE wind 10 to 12 kt. Cloudy. Seas around 3 ft.
Thursday Night
E wind 10 to 13 kt. Rain likely, mainly after 4am. Seas 2 to 3 ft.
Friday
E wind 13 to 17 kt. Rain. Seas around 3 ft.
Friday Night
NE wind around 9 kt becoming WNW after midnight. A chance of rain before 1am. Seas around 3 ft.
Saturday
WNW wind 7 to 9 kt becoming NNE in the afternoon. A slight chance of rain after 1pm. Seas 2 to 3 ft.
Saturday Night
E wind 9 to 11 kt. A chance of rain and snow before 10pm, then a chance of snow. Seas around 2 ft.
Sunday
ENE wind 12 to 16 kt. A chance of snow. Seas around 2 ft.
Sunday Night
ENE wind 16 to 18 kt becoming NNE after midnight. A chance of snow. Seas around 3 ft.
Monday
N wind 14 to 17 kt, with gusts as high as 23 kt. A chance of snow. Seas 4 ft building to 7 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: 1:10 am EST Feb 19, 2026
Forecast Valid: 3am EST Feb 19, 2026-6pm EST Feb 25, 2026
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