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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:E wind 15 to 18 kt, with gusts as high as 24 kt. Rain.   Seas around 1 ft.

      E 18kt
      1ft

    • Sunday

      Sunday:E wind 16 to 20 kt, with gusts as high as 27 kt. Rain.   Seas around 1 ft.

      E 20kt
      1ft

    • Sunday Night

      Sunday Night:ENE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Rain.   Seas 1 ft or less.

      ENE 9kt⇓
      < 1ft

    • Memorial Day

      Memorial Day:Variable winds 5 kt or less. Showers likely, mainly before 8am.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A slight chance of showers before 8pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming WSW 5 to 8 kt in the morning. Partly sunny. Seas 1 ft or less.

      ⇑WSW 8kt
      < 1ft

    • Wednesday Night

      Wednesday Night:WSW wind around 6 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.

      WSW 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:21 pm EDT May 23, 2026
Forecast Valid: 12am EDT May 24, 2026-6pm EDT May 30, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING

Overnight
E wind 15 to 18 kt, with gusts as high as 24 kt. Rain. Seas around 1 ft.
Sunday
E wind 16 to 20 kt, with gusts as high as 27 kt. Rain. Seas around 1 ft.
Sunday Night
ENE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Rain. Seas 1 ft or less.
Memorial Day
Variable winds 5 kt or less. Showers likely, mainly before 8am. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. A slight chance of showers before 8pm. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming WSW 5 to 8 kt in the morning. Partly sunny. Seas 1 ft or less.
Wednesday Night
WSW wind around 6 kt becoming NW after midnight. Mostly cloudy. 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: 40.91°N 73.39°W
Last Update: 2:21 pm EDT May 23, 2026
Forecast Valid: 12am EDT May 24, 2026-6pm EDT May 30, 2026
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