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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNE wind 6 to 8 kt. Increasing clouds. Seas around 1 ft.

      NNE 8kt
      1ft

    • Friday

      Friday:NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Mostly cloudy. Seas 1 to 2 ft.

      NNE 8kt⇓
      1-2ft

    • Friday Night

      Friday Night:Variable winds less than 5 kt becoming W 5 to 10 kt in the evening. Snow, mainly after 1am.   Seas 1 to 2 ft.

      ⇑W 10kt
      1-2ft

    • Saturday

      Saturday:NW wind 14 to 19 kt increasing to 26 to 31 kt. Winds could gust as high as 44 kt. Snow likely, mainly before 1pm.   Seas 2 to 3 ft.

      ⇑NW 31kt
      2-3ft

    • Saturday Night

      Saturday Night:NNW wind 31 to 34 kt decreasing to 25 to 28 kt after midnight. Winds could gust as high as 43 kt. Partly cloudy. Seas 3 to 4 ft.

      NNW 34kt⇓
      3-4ft

    • Sunday

      Sunday:NW wind 21 to 24 kt, with gusts as high as 30 kt. Sunny. Seas around 3 ft.

      NW 24kt
      3ft

    • Sunday Night

      Sunday Night:NW wind 17 to 20 kt decreasing to 14 to 17 kt after midnight. Mostly clear. Seas 2 to 3 ft.

      NW 20kt⇓
      2-3ft

    • Monday

      Monday:NW wind around 13 kt. Mostly sunny. Seas around 2 ft.

      NW 13kt
      2ft

    • Monday Night

      Monday Night:NW wind 10 to 12 kt. Partly cloudy. Seas around 2 ft.

      NW 12kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 1:09 pm EST Feb 5, 2026
Forecast Valid: 10pm EST Feb 5, 2026-6pm EST Feb 12, 2026

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Detailed Forecast

...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE

Tonight
NNE wind 6 to 8 kt. Increasing clouds. Seas around 1 ft.
Friday
NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Mostly cloudy. Seas 1 to 2 ft.
Friday Night
Variable winds less than 5 kt becoming W 5 to 10 kt in the evening. Snow, mainly after 1am. Seas 1 to 2 ft.
Saturday
NW wind 14 to 19 kt increasing to 26 to 31 kt. Winds could gust as high as 44 kt. Snow likely, mainly before 1pm. Seas 2 to 3 ft.
Saturday Night
NNW wind 31 to 34 kt decreasing to 25 to 28 kt after midnight. Winds could gust as high as 43 kt. Partly cloudy. Seas 3 to 4 ft.
Sunday
NW wind 21 to 24 kt, with gusts as high as 30 kt. Sunny. Seas around 3 ft.
Sunday Night
NW wind 17 to 20 kt decreasing to 14 to 17 kt after midnight. Mostly clear. Seas 2 to 3 ft.
Monday
NW wind around 13 kt. Mostly sunny. Seas around 2 ft.
Monday Night
NW wind 10 to 12 kt. 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: 1:09 pm EST Feb 5, 2026
Forecast Valid: 10pm EST Feb 5, 2026-6pm EST Feb 12, 2026
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