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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 5 to 8 kt becoming NW after midnight. Showers likely and possibly a thunderstorm before 11pm, then scattered showers.   Seas around 1 ft.

      WNW 8kt
      1ft

    • Thursday

      Thursday:NNW wind 5 to 8 kt becoming WNW in the afternoon. A chance of showers before 8am.   Seas around 1 ft.

      NNW 8kt
      1ft

    • Thursday Night

      Thursday Night:WNW wind 5 to 7 kt becoming NNW after midnight. Increasing clouds. Seas around 1 ft.

      WNW 7kt
      1ft

    • Friday

      Friday:W wind 7 to 12 kt. Mostly sunny. Seas 1 ft or less.

      W 12kt
      < 1ft

    • Friday Night

      Friday Night:W wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers after 2am.   Seas 1 ft or less.

      W 6kt⇓
      < 1ft

    • Saturday

      Saturday:S wind 6 to 11 kt. Showers, mainly after 8am.   Seas 1 ft or less.

      S 11kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before 8pm.   Seas 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Sunday Night

      Sunday Night:S wind 5 to 7 kt. Showers.   Seas 1 ft or less.

      S 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:12 pm EDT May 6, 2026
Forecast Valid: 9pm EDT May 6, 2026-6pm EDT May 13, 2026

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Detailed Forecast


Tonight
SW wind 5 to 8 kt becoming NW after midnight. Showers likely and possibly a thunderstorm before 11pm, then scattered showers. Seas around 1 ft.
Thursday
NNW wind 5 to 8 kt becoming WNW in the afternoon. A chance of showers before 8am. Seas around 1 ft.
Thursday Night
WNW wind 5 to 7 kt becoming NNW after midnight. Increasing clouds. Seas around 1 ft.
Friday
W wind 7 to 12 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
W wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers after 2am. Seas 1 ft or less.
Saturday
S wind 6 to 11 kt. Showers, mainly after 8am. Seas 1 ft or less.
Saturday Night
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before 8pm. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Sunday Night
S wind 5 to 7 kt. Showers. 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: 6:12 pm EDT May 6, 2026
Forecast Valid: 9pm EDT May 6, 2026-6pm EDT May 13, 2026
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