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New York, NY Local Forecast Office

10NM E Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 16 kt. Mostly cloudy. Seas around 1 ft.

      N 16kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:N wind 9 to 13 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 1 ft or less.

      N 13kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind 5 to 10 kt becoming SSW in the afternoon. Increasing clouds. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind 15 to 18 kt increasing to 19 to 22 kt in the evening. Winds could gust as high as 29 kt. A slight chance of rain before 1am.   Seas 1 to 2 ft.

      ⇑WSW 22kt
      1-2ft

    • Wednesday

      Wednesday:SSW wind 17 to 20 kt increasing to 21 to 24 kt in the afternoon. Winds could gust as high as 32 kt. Rain likely, mainly after 1pm.   Seas 1 to 2 ft.

      ⇑SSW 24kt
      1-2ft

    • Wednesday Night

      Wednesday Night:SW wind 20 to 24 kt becoming W after midnight. Winds could gust as high as 32 kt. A chance of rain before 1am.   Seas 1 to 2 ft.

      SW 24kt
      1-2ft

    • Thursday

      Thursday:WNW wind around 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 2 ft.

      WNW 19kt
      2ft

    • Thursday Night

      Thursday Night:WNW wind 16 to 19 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 2 ft.

      WNW 19kt
      2ft

    • Friday

      Friday:W wind around 17 kt, with gusts as high as 23 kt. Mostly sunny. Seas around 2 ft.

      W 17kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 12:50 pm EST Dec 8, 2025
Forecast Valid: 1pm EST Dec 8, 2025-6pm EST Dec 14, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EST THIS AFTERNOON...

This Afternoon
N wind around 16 kt. Mostly cloudy. Seas around 1 ft.
Tonight
N wind 9 to 13 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 1 ft or less.
Tuesday
NNE wind 5 to 10 kt becoming SSW in the afternoon. Increasing clouds. Seas 1 ft or less.
Tuesday Night
WSW wind 15 to 18 kt increasing to 19 to 22 kt in the evening. Winds could gust as high as 29 kt. A slight chance of rain before 1am. Seas 1 to 2 ft.
Wednesday
SSW wind 17 to 20 kt increasing to 21 to 24 kt in the afternoon. Winds could gust as high as 32 kt. Rain likely, mainly after 1pm. Seas 1 to 2 ft.
Wednesday Night
SW wind 20 to 24 kt becoming W after midnight. Winds could gust as high as 32 kt. A chance of rain before 1am. Seas 1 to 2 ft.
Thursday
WNW wind around 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
WNW wind 16 to 19 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 2 ft.
Friday
W wind around 17 kt, with gusts as high as 23 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: 40.72°N 72.98°W
Last Update: 12:50 pm EST Dec 8, 2025
Forecast Valid: 1pm EST Dec 8, 2025-6pm EST Dec 14, 2025
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