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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NW wind around 19 kt, with gusts as high as 27 kt. Patchy blowing snow.  Seas 7 ft subsiding to 4 ft.

      NW 19kt
      7ftWaves Subsiding

    • Tuesday

      Tuesday:NW wind 14 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas 3 to 4 ft.

      NW 17kt
      3-4ft

    • Tuesday Night

      Tuesday Night:WSW wind 9 to 12 kt becoming S 14 to 17 kt after midnight. A chance of snow showers after 1am.   Seas 2 to 3 ft.

      ⇑S 17kt
      2-3ft

    • Wednesday

      Wednesday:SW wind 15 to 19 kt, with gusts as high as 25 kt. Snow likely, mixing with rain after 10am, then gradually ending.   Seas 4 to 5 ft.

      SW 19kt
      4-5ft

    • Wednesday Night

      Wednesday Night:SW wind 12 to 14 kt becoming W after midnight. Partly cloudy. Seas around 4 ft.

      SW 14kt
      4ft

    • Thursday

      Thursday:W wind 7 to 10 kt becoming SE in the afternoon. A chance of rain and snow after 1pm.   Seas 3 to 4 ft.

      W 10kt
      3-4ft

    • Thursday Night

      Thursday Night:ESE wind 12 to 14 kt becoming NNW after midnight. Rain and snow likely, mainly before 1am.   Seas around 3 ft.

      E 14kt
      3ft

    • Friday

      Friday:NW wind 8 to 12 kt. Mostly sunny. Seas 5 to 6 ft.

      NW 12kt
      5-6ft

    • Friday Night

      Friday Night:WNW wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 3 to 4 ft.

      WNW 6kt⇓
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 12:58 pm EST Feb 23, 2026
Forecast Valid: 8pm EST Feb 23, 2026-6pm EST Mar 2, 2026

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Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY...

Tonight
NW wind around 19 kt, with gusts as high as 27 kt. Patchy blowing snow. Seas 7 ft subsiding to 4 ft.
Tuesday
NW wind 14 to 17 kt, with gusts as high as 24 kt. Mostly sunny. Seas 3 to 4 ft.
Tuesday Night
WSW wind 9 to 12 kt becoming S 14 to 17 kt after midnight. A chance of snow showers after 1am. Seas 2 to 3 ft.
Wednesday
SW wind 15 to 19 kt, with gusts as high as 25 kt. Snow likely, mixing with rain after 10am, then gradually ending. Seas 4 to 5 ft.
Wednesday Night
SW wind 12 to 14 kt becoming W after midnight. Partly cloudy. Seas around 4 ft.
Thursday
W wind 7 to 10 kt becoming SE in the afternoon. A chance of rain and snow after 1pm. Seas 3 to 4 ft.
Thursday Night
ESE wind 12 to 14 kt becoming NNW after midnight. Rain and snow likely, mainly before 1am. Seas around 3 ft.
Friday
NW wind 8 to 12 kt. Mostly sunny. Seas 5 to 6 ft.
Friday Night
WNW wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 3 to 4 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: 12:58 pm EST Feb 23, 2026
Forecast Valid: 8pm EST Feb 23, 2026-6pm EST Mar 2, 2026
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