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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SSW wind 13 to 16 kt becoming W 8 to 11 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

      SSW 16kt⇓
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:WNW wind 5 to 8 kt. A slight chance of snow after 1pm.   Seas 3 to 4 ft.

      WNW 8kt
      3-4ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Partly cloudy. Seas 2 to 3 ft.

      Light Wind
      2-3ft

    • Friday

      Friday:Variable winds 5 kt or less. Sunny. Seas 2 to 3 ft.

      Light Wind
      2-3ft

    • Friday Night

      Friday Night:S wind around 6 kt. Mostly clear. Seas around 2 ft.

      S 6kt
      2ft

    • Saturday

      Saturday:S wind around 7 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.

      SW 7kt
      2ft

    • Saturday Night

      Saturday Night:W wind 5 to 8 kt becoming NNW after midnight. Increasing clouds. Seas around 2 ft.

      NNW 8kt
      2ft

    • Sunday

      Sunday:NNW wind 9 to 14 kt. Mostly cloudy. Seas around 2 ft.

      NNW 14kt
      2ft

    • Sunday Night

      Sunday Night:NNW wind 13 to 15 kt becoming NNE after midnight. Partly cloudy. Seas around 2 ft.

      N 15kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 5:43 pm EST Feb 25, 2026
Forecast Valid: 11pm EST Feb 25, 2026-6pm EST Mar 4, 2026

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Detailed Forecast

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

Overnight
SSW wind 13 to 16 kt becoming W 8 to 11 kt after midnight. Partly cloudy. Seas 4 to 5 ft.
Thursday
WNW wind 5 to 8 kt. A slight chance of snow after 1pm. Seas 3 to 4 ft.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Seas 2 to 3 ft.
Friday
Variable winds 5 kt or less. Sunny. Seas 2 to 3 ft.
Friday Night
S wind around 6 kt. Mostly clear. Seas around 2 ft.
Saturday
S wind around 7 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.
Saturday Night
W wind 5 to 8 kt becoming NNW after midnight. Increasing clouds. Seas around 2 ft.
Sunday
NNW wind 9 to 14 kt. Mostly cloudy. Seas around 2 ft.
Sunday Night
NNW wind 13 to 15 kt becoming NNE after midnight. Partly cloudy. Seas around 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: 40.57°N 73.57°W
Last Update: 5:43 pm EST Feb 25, 2026
Forecast Valid: 11pm EST Feb 25, 2026-6pm EST Mar 4, 2026
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