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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 13 to 16 kt. Mostly sunny. Seas 3 to 4 ft.

      WNW 16kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:W wind 9 to 12 kt becoming S 12 to 15 kt after midnight. Winds could gust as high as 21 kt. Snow likely, mainly after 4am.   Seas 2 to 3 ft.

      ⇑S 15kt
      2-3ft

    • Wednesday

      Wednesday:SW wind 13 to 17 kt, with gusts as high as 24 kt. Snow likely, possibly mixing with rain after 10am, then gradually ending.   Seas 3 to 4 ft.

      SW 17kt
      3-4ft

    • Wednesday Night

      Wednesday Night:SW wind 10 to 12 kt becoming W after midnight. Partly cloudy. Seas around 4 ft.

      SW 12kt
      4ft

    • Thursday

      Thursday:WNW wind 5 to 10 kt becoming variable and less than 5 kt. A slight chance of snow before 1pm, then a chance of rain and snow.   Seas 3 to 4 ft.

      WNW 10kt⇓
      3-4ft

    • Thursday Night

      Thursday Night:NE wind around 9 kt becoming N in the evening. Snow likely, mainly before 1am.   Seas around 2 ft.

      NE 9kt
      2ft

    • Friday

      Friday:N wind 6 to 9 kt becoming WNW in the afternoon. Mostly sunny. Seas around 2 ft.

      N 9kt
      2ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Light Wind
      2ft

    • Saturday

      Saturday:SSW wind 6 to 9 kt. Mostly sunny. Seas around 2 ft.

      SSW 9kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 5:37 am EST Feb 24, 2026
Forecast Valid: 9am EST Feb 24, 2026-6pm EST Mar 2, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

Today
WNW wind 13 to 16 kt. Mostly sunny. Seas 3 to 4 ft.
Tonight
W wind 9 to 12 kt becoming S 12 to 15 kt after midnight. Winds could gust as high as 21 kt. Snow likely, mainly after 4am. Seas 2 to 3 ft.
Wednesday
SW wind 13 to 17 kt, with gusts as high as 24 kt. Snow likely, possibly mixing with rain after 10am, then gradually ending. Seas 3 to 4 ft.
Wednesday Night
SW wind 10 to 12 kt becoming W after midnight. Partly cloudy. Seas around 4 ft.
Thursday
WNW wind 5 to 10 kt becoming variable and less than 5 kt. A slight chance of snow before 1pm, then a chance of rain and snow. Seas 3 to 4 ft.
Thursday Night
NE wind around 9 kt becoming N in the evening. Snow likely, mainly before 1am. Seas around 2 ft.
Friday
N wind 6 to 9 kt becoming WNW in the afternoon. Mostly sunny. Seas around 2 ft.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Saturday
SSW wind 6 to 9 kt. Mostly sunny. 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: 5:37 am EST Feb 24, 2026
Forecast Valid: 9am EST Feb 24, 2026-6pm EST Mar 2, 2026
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