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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ENE wind 13 to 15 kt, with gusts as high as 24 kt. Showers and possibly a thunderstorm before 2am, then showers likely.   Seas around 1 ft.

      ENE 15kt
      1ft

    • Tuesday

      Tuesday:NE wind 10 to 13 kt, with gusts as high as 20 kt. A chance of showers before 11am.   Seas 1 ft or less.

      NE 13kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NNE wind 9 to 11 kt. Mostly cloudy. Seas 1 ft or less.

      NNE 11kt
      < 1ft

    • Wednesday

      Wednesday:N wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Partly sunny through mid morning, then becoming sunny. Seas 1 ft or less.

      N 8kt⇓
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind around 6 kt. Mostly clear. Seas 1 ft or less.

      SSW 6kt
      < 1ft

    • Thursday

      Thursday:SW wind 5 to 9 kt. Mostly sunny. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 7 to 9 kt. A chance of showers before 2am.   Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Friday

      Friday:W wind around 7 kt. A chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      W 7kt
      < 1ft

    • Friday Night

      Friday Night:W wind 5 to 7 kt becoming NW after midnight. A chance of showers and thunderstorms before 8pm.   Seas 1 ft or less.

      W 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Jul 6, 2026
Forecast Valid: 6pm EDT Jul 6, 2026-6pm EDT Jul 13, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight
ENE wind 13 to 15 kt, with gusts as high as 24 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas around 1 ft.
Tuesday
NE wind 10 to 13 kt, with gusts as high as 20 kt. A chance of showers before 11am. Seas 1 ft or less.
Tuesday Night
NNE wind 9 to 11 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
N wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Partly sunny through mid morning, then becoming sunny. Seas 1 ft or less.
Wednesday Night
SSW wind around 6 kt. Mostly clear. Seas 1 ft or less.
Thursday
SW wind 5 to 9 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
SW wind 7 to 9 kt. A chance of showers before 2am. Seas 1 ft or less.
Friday
W wind around 7 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Friday Night
W wind 5 to 7 kt becoming NW after midnight. A chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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: 2:35 pm EDT Jul 6, 2026
Forecast Valid: 6pm EDT Jul 6, 2026-6pm EDT Jul 13, 2026
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