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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Increasing clouds. Seas 1 ft or less.

      ⇑SSW 10kt
      < 1ft

    • Tonight

      Tonight:SW wind 17 to 22 kt. Mostly cloudy. Seas around 1 ft.

      SW 22kt
      1ft

    • Wednesday

      Wednesday:SW wind 22 to 25 kt increasing to 26 to 29 kt in the afternoon. Winds could gust as high as 36 kt. Rain likely, mainly after 1pm.   Seas 1 to 2 ft.

      ⇑SW 29kt
      1-2ft

    • Wednesday Night

      Wednesday Night:SW wind 25 to 28 kt becoming WSW 20 to 23 kt after midnight. A chance of rain before 1am.   Seas 1 to 2 ft.

      SW 28kt⇓
      1-2ft

    • Thursday

      Thursday:WNW wind 20 to 24 kt. Mostly sunny. Seas around 1 ft.

      WNW 24kt
      1ft

    • Thursday Night

      Thursday Night:W wind 23 to 27 kt. Partly cloudy. Seas around 1 ft.

      W 27kt
      1ft

    • Friday

      Friday:W wind 18 to 21 kt. Mostly sunny. Seas around 1 ft.

      W 21kt
      1ft

    • Friday Night

      Friday Night:W wind 13 to 16 kt. A chance of rain and snow.   Seas around 1 ft.

      W 16kt
      1ft

    • Saturday

      Saturday:W wind 17 to 20 kt increasing to 20 to 23 kt in the afternoon. Partly sunny. Seas around 1 ft.

      ⇑W 23kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 5:28 am EST Dec 9, 2025
Forecast Valid: 5am EST Dec 9, 2025-6pm EST Dec 15, 2025

View Nearby Observations

Detailed Forecast

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

Today
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Increasing clouds. Seas 1 ft or less.
Tonight
SW wind 17 to 22 kt. Mostly cloudy. Seas around 1 ft.
Wednesday
SW wind 22 to 25 kt increasing to 26 to 29 kt in the afternoon. Winds could gust as high as 36 kt. Rain likely, mainly after 1pm. Seas 1 to 2 ft.
Wednesday Night
SW wind 25 to 28 kt becoming WSW 20 to 23 kt after midnight. A chance of rain before 1am. Seas 1 to 2 ft.
Thursday
WNW wind 20 to 24 kt. Mostly sunny. Seas around 1 ft.
Thursday Night
W wind 23 to 27 kt. Partly cloudy. Seas around 1 ft.
Friday
W wind 18 to 21 kt. Mostly sunny. Seas around 1 ft.
Friday Night
W wind 13 to 16 kt. A chance of rain and snow. Seas around 1 ft.
Saturday
W wind 17 to 20 kt increasing to 20 to 23 kt in the afternoon. Partly sunny. 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: 40.7°N 72.99°W
Last Update: 5:28 am EST Dec 9, 2025
Forecast Valid: 5am EST Dec 9, 2025-6pm EST Dec 15, 2025
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