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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:W wind 12 to 14 kt, with gusts as high as 21 kt. A chance of flurries after 1am.   Seas 2 to 3 ft.

      W 14kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:W wind around 15 kt, with gusts as high as 21 kt. Cloudy, then gradually becoming mostly sunny. Seas 2 to 3 ft.

      W 15kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:WNW wind 12 to 14 kt, with gusts as high as 20 kt. Partly cloudy. Seas 2 to 3 ft.

      WNW 14kt
      2-3ft

    • Saturday

      Saturday:WNW wind 7 to 12 kt. Increasing clouds. Seas around 2 ft.

      WNW 12kt
      2ft

    • Saturday Night

      Saturday Night:WNW wind around 7 kt becoming NNW after midnight. Cloudy. Seas around 1 ft.

      NNW 7kt
      1ft

    • Sunday

      Sunday:NW wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.

      ⇑NW 13kt
      1ft

    • Sunday Night

      Sunday Night:NW wind 12 to 14 kt. Partly cloudy. Seas 1 to 2 ft.

      NW 14kt
      1-2ft

    • Monday

      Monday:NNW wind 6 to 10 kt becoming SW in the afternoon. Partly sunny. Seas 1 to 2 ft.

      NNW 10kt
      1-2ft

    • Monday Night

      Monday Night:WSW wind around 7 kt. Mostly cloudy. Seas around 1 ft.

      WSW 7kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 8:57 pm EST Jan 1, 2026
Forecast Valid: 11pm EST Jan 1, 2026-6pm EST Jan 8, 2026

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Detailed Forecast

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

Overnight
W wind 12 to 14 kt, with gusts as high as 21 kt. A chance of flurries after 1am. Seas 2 to 3 ft.
Friday
W wind around 15 kt, with gusts as high as 21 kt. Cloudy, then gradually becoming mostly sunny. Seas 2 to 3 ft.
Friday Night
WNW wind 12 to 14 kt, with gusts as high as 20 kt. Partly cloudy. Seas 2 to 3 ft.
Saturday
WNW wind 7 to 12 kt. Increasing clouds. Seas around 2 ft.
Saturday Night
WNW wind around 7 kt becoming NNW after midnight. Cloudy. Seas around 1 ft.
Sunday
NW wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.
Sunday Night
NW wind 12 to 14 kt. Partly cloudy. Seas 1 to 2 ft.
Monday
NNW wind 6 to 10 kt becoming SW in the afternoon. Partly sunny. Seas 1 to 2 ft.
Monday Night
WSW wind around 7 kt. Mostly cloudy. Seas around 1 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: 8:57 pm EST Jan 1, 2026
Forecast Valid: 11pm EST Jan 1, 2026-6pm EST Jan 8, 2026
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