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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 9 to 14 kt becoming NNW in the morning. Winds could gust as high as 23 kt. Sunny. Seas around 4 ft.

      NNW 14kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:NNW wind 7 to 10 kt becoming N after midnight. Clear. Seas around 3 ft.

      NNW 10kt
      3ft

    • Sunday

      Sunday:NE wind 5 to 9 kt becoming SE in the afternoon. Increasing clouds. Seas around 3 ft.

      SE 9kt
      3ft

    • Sunday Night

      Sunday Night:S wind 11 to 13 kt. Mostly cloudy. Seas around 3 ft.

      S 13kt
      3ft

    • Monday

      Monday:SSW wind 14 to 17 kt, with gusts as high as 23 kt. A slight chance of showers after 2pm.   Seas 4 to 5 ft.

      SSW 17kt
      4-5ft

    • Monday Night

      Monday Night:WSW wind 14 to 17 kt decreasing to 11 to 14 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

      WSW 17kt⇓
      4-5ft

    • Tuesday

      Tuesday:W wind 7 to 9 kt becoming SSW in the afternoon. Partly sunny. Seas around 3 ft.

      SSW 9kt
      3ft

    • Tuesday Night

      Tuesday Night:SSW wind 8 to 11 kt. Mostly cloudy. Seas around 3 ft.

      SSW 11kt
      3ft

    • Wednesday

      Wednesday:S wind 7 to 12 kt. Partly sunny. Seas 2 to 3 ft.

      S 12kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 4:11 am EDT Apr 11, 2026
Forecast Valid: 5am EDT Apr 11, 2026-6pm EDT Apr 17, 2026

View Nearby Observations

Detailed Forecast

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

Today
WNW wind 9 to 14 kt becoming NNW in the morning. Winds could gust as high as 23 kt. Sunny. Seas around 4 ft.
Tonight
NNW wind 7 to 10 kt becoming N after midnight. Clear. Seas around 3 ft.
Sunday
NE wind 5 to 9 kt becoming SE in the afternoon. Increasing clouds. Seas around 3 ft.
Sunday Night
S wind 11 to 13 kt. Mostly cloudy. Seas around 3 ft.
Monday
SSW wind 14 to 17 kt, with gusts as high as 23 kt. A slight chance of showers after 2pm. Seas 4 to 5 ft.
Monday Night
WSW wind 14 to 17 kt decreasing to 11 to 14 kt after midnight. Partly cloudy. Seas 4 to 5 ft.
Tuesday
W wind 7 to 9 kt becoming SSW in the afternoon. Partly sunny. Seas around 3 ft.
Tuesday Night
SSW wind 8 to 11 kt. Mostly cloudy. Seas around 3 ft.
Wednesday
S wind 7 to 12 kt. Partly sunny. 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: 40.57°N 73.57°W
Last Update: 4:11 am EDT Apr 11, 2026
Forecast Valid: 5am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
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