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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.

      NNE 6kt⇓
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SW 7 to 12 kt in the morning. Mostly cloudy. Seas 1 ft or less.

      ⇑SW 12kt
      < 1ft

    • Friday Night

      Friday Night:SW wind 7 to 11 kt becoming NW after midnight. Rain likely, mainly after 1am.   Seas around 1 ft.

      SW 11kt
      1ft

    • Saturday

      Saturday:NNW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of rain before 1pm.   Seas 1 to 2 ft.

      NNW 15kt
      1-2ft

    • Saturday Night

      Saturday Night:N wind 9 to 13 kt. Partly cloudy. Seas 1 to 2 ft.

      N 13kt
      1-2ft

    • Sunday

      Sunday:NNW wind 6 to 10 kt becoming WSW in the afternoon. Mostly sunny. Seas around 1 ft.

      W 10kt
      1ft

    • Sunday Night

      Sunday Night:WSW wind 10 to 14 kt. Partly cloudy. Seas 1 to 2 ft.

      WSW 14kt
      1-2ft

    • Monday

      Monday:WNW wind 13 to 16 kt. Mostly sunny. Seas around 2 ft.

      WNW 16kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 12:34 am EST Nov 20, 2025
Forecast Valid: 7am EST Nov 20, 2025-6pm EST Nov 26, 2025

View Nearby Observations

Detailed Forecast


Today
NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming SW 7 to 12 kt in the morning. Mostly cloudy. Seas 1 ft or less.
Friday Night
SW wind 7 to 11 kt becoming NW after midnight. Rain likely, mainly after 1am. Seas around 1 ft.
Saturday
NNW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of rain before 1pm. Seas 1 to 2 ft.
Saturday Night
N wind 9 to 13 kt. Partly cloudy. Seas 1 to 2 ft.
Sunday
NNW wind 6 to 10 kt becoming WSW in the afternoon. Mostly sunny. Seas around 1 ft.
Sunday Night
WSW wind 10 to 14 kt. Partly cloudy. Seas 1 to 2 ft.
Monday
WNW wind 13 to 16 kt. Mostly sunny. 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: 40.7°N 72.99°W
Last Update: 12:34 am EST Nov 20, 2025
Forecast Valid: 7am EST Nov 20, 2025-6pm EST Nov 26, 2025
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