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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:WNW wind 12 to 14 kt. Patchy blowing snow before 7am.  Seas around 2 ft.

      WNW 14kt
      2ft

    • Tuesday Night

      Tuesday Night:WNW wind 6 to 10 kt becoming S after midnight. A chance of snow, mainly after 4am.   Seas around 1 ft.

      S 10kt
      1ft

    • Wednesday

      Wednesday:SW wind 12 to 14 kt. Snow likely, mainly before 10am.   Seas around 2 ft.

      SW 14kt
      2ft

    • Wednesday Night

      Wednesday Night:SW wind 9 to 12 kt becoming W after midnight. Partly cloudy. Seas 1 to 2 ft.

      SW 12kt
      1-2ft

    • Thursday

      Thursday:W wind around 7 kt becoming WSW in the afternoon. A slight chance of snow before 1pm, then a chance of rain and snow.   Seas around 1 ft.

      W 7kt
      1ft

    • Thursday Night

      Thursday Night:N wind 6 to 8 kt. Snow likely, mainly before 1am.   Seas around 1 ft.

      N 8kt
      1ft

    • Friday

      Friday:N wind 5 to 8 kt becoming WSW in the afternoon. Mostly sunny. Seas 1 ft or less.

      N 8kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 7 kt. Mostly sunny. Seas 1 ft or less.

      SSW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:15 am EST Feb 24, 2026
Forecast Valid: 3am EST Feb 24, 2026-6pm EST Mar 2, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

Tuesday
WNW wind 12 to 14 kt. Patchy blowing snow before 7am. Seas around 2 ft.
Tuesday Night
WNW wind 6 to 10 kt becoming S after midnight. A chance of snow, mainly after 4am. Seas around 1 ft.
Wednesday
SW wind 12 to 14 kt. Snow likely, mainly before 10am. Seas around 2 ft.
Wednesday Night
SW wind 9 to 12 kt becoming W after midnight. Partly cloudy. Seas 1 to 2 ft.
Thursday
W wind around 7 kt becoming WSW in the afternoon. A slight chance of snow before 1pm, then a chance of rain and snow. Seas around 1 ft.
Thursday Night
N wind 6 to 8 kt. Snow likely, mainly before 1am. Seas around 1 ft.
Friday
N wind 5 to 8 kt becoming WSW in the afternoon. Mostly sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
SSW wind 5 to 7 kt. Mostly sunny. 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: 1:15 am EST Feb 24, 2026
Forecast Valid: 3am EST Feb 24, 2026-6pm EST Mar 2, 2026
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