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New York, NY Local Forecast Office

9NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind 13 to 15 kt becoming ENE in the afternoon. Winds could gust as high as 21 kt. Rain, mainly after 1pm.   Seas 1 ft or less.

      ESE 15kt
      < 1ft

    • Tonight

      Tonight:NNE wind around 17 kt, with gusts as high as 25 kt. Rain.   Seas around 1 ft.

      NNE 17kt
      1ft

    • Friday

      Friday:NNE wind 13 to 17 kt becoming N in the afternoon. Winds could gust as high as 25 kt. Rain.   Seas 1 ft or less.

      NNE 17kt
      < 1ft

    • Friday Night

      Friday Night:NNW wind 10 to 12 kt. A chance of rain, mainly after 1am.   Seas 1 ft or less.

      NNW 12kt
      < 1ft

    • Saturday

      Saturday:NW wind 10 to 13 kt. Partly sunny. Seas 1 ft or less.

      NW 13kt
      < 1ft

    • Saturday Night

      Saturday Night:NW wind around 12 kt. Partly cloudy. Seas 1 ft or less.

      NW 12kt
      < 1ft

    • Sunday

      Sunday:NW wind around 12 kt. Mostly sunny. Seas 1 ft or less.

      NW 12kt
      < 1ft

    • Sunday Night

      Sunday Night:NNW wind 8 to 10 kt. Partly cloudy. Seas 1 ft or less.

      NNW 10kt
      < 1ft

    • Monday

      Monday:NNW wind around 9 kt. Sunny. Seas 1 ft or less.

      NNW 9kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:11 am EST Nov 12, 2026
Forecast Valid: 9am EST Nov 12, 2026-6pm EST Nov 18, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING

Today
ESE wind 13 to 15 kt becoming ENE in the afternoon. Winds could gust as high as 21 kt. Rain, mainly after 1pm. Seas 1 ft or less.
Tonight
NNE wind around 17 kt, with gusts as high as 25 kt. Rain. Seas around 1 ft.
Friday
NNE wind 13 to 17 kt becoming N in the afternoon. Winds could gust as high as 25 kt. Rain. Seas 1 ft or less.
Friday Night
NNW wind 10 to 12 kt. A chance of rain, mainly after 1am. Seas 1 ft or less.
Saturday
NW wind 10 to 13 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
NW wind around 12 kt. Partly cloudy. Seas 1 ft or less.
Sunday
NW wind around 12 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
NNW wind 8 to 10 kt. Partly cloudy. Seas 1 ft or less.
Monday
NNW wind around 9 kt. Sunny. Seas 1 ft or less.

*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: 40.64°N 73.38°W
Last Update: 6:11 am EST Nov 12, 2026
Forecast Valid: 9am EST Nov 12, 2026-6pm EST Nov 18, 2026
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