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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 5am. Seas around 1 ft.

      Light Wind
      1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming ENE around 6 kt in the morning. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.

      ⇑ENE 6kt
      < 1ft

    • Sunday Night

      Sunday Night:E wind 7 to 9 kt. A chance of showers and thunderstorms, then rain and possibly a thunderstorm after 8pm. Seas around 1 ft.

      E 9kt
      1ft

    • Monday

      Monday:E wind around 14 kt. Rain and possibly a thunderstorm. Seas 1 ft or less.

      E 14kt
      < 1ft

    • Monday Night

      Monday Night:ENE wind around 15 kt. Rain and possibly a thunderstorm. Seas 1 ft or less.

      ENE 15kt
      < 1ft

    • Tuesday

      Tuesday:NE wind 14 to 17 kt decreasing to 11 to 14 kt in the afternoon. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.

      NE 17kt⇓
      1-2ft

    • Tuesday Night

      Tuesday Night:NE wind 9 to 12 kt. A chance of showers before 2am. Seas around 1 ft.

      NE 12kt
      1ft

    • Wednesday

      Wednesday:NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      NNE 8kt⇓
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

      Light Wind
      1ft


Associated Zone Forecast which includes this point

Last Update: 5:30 pm EDT Jul 4, 2026
Forecast Valid: 12am EDT Jul 5, 2026-6pm EDT Jul 11, 2026

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Detailed Forecast


Overnight
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 5am. Seas around 1 ft.
Sunday
Variable winds less than 5 kt becoming ENE around 6 kt in the morning. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.
Sunday Night
E wind 7 to 9 kt. A chance of showers and thunderstorms, then rain and possibly a thunderstorm after 8pm. Seas around 1 ft.
Monday
E wind around 14 kt. Rain and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
ENE wind around 15 kt. Rain and possibly a thunderstorm. Seas 1 ft or less.
Tuesday
NE wind 14 to 17 kt decreasing to 11 to 14 kt in the afternoon. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.
Tuesday Night
NE wind 9 to 12 kt. A chance of showers before 2am. Seas around 1 ft.
Wednesday
NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

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: 5:30 pm EDT Jul 4, 2026
Forecast Valid: 12am EDT Jul 5, 2026-6pm EDT Jul 11, 2026
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