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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:E wind 10 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas 1 ft or less.

      E 15kt
      < 1ft

    • Tonight

      Tonight:ESE wind 6 to 8 kt becoming E after midnight. Cloudy. Seas 1 ft or less.

      ESE 8kt
      < 1ft

    • Saturday

      Saturday:E wind 10 to 13 kt. Showers likely, mainly after 11am. Seas 1 ft or less.

      E 13kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 15 to 20 kt, with gusts as high as 26 kt. Rain, with thunderstorms also possible after 2am. Seas around 1 ft.

      E 20kt
      1ft

    • Sunday

      Sunday:E wind 18 to 21 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 27 kt. Rain and possibly a thunderstorm before 2pm, then rain likely. Seas around 1 ft.

      E 21kt⇓
      1ft

    • Sunday Night

      Sunday Night:ENE wind 5 to 10 kt becoming N after midnight. Rain likely, mainly before 8pm. Seas 1 ft or less.

      ENE 10kt
      < 1ft

    • Memorial Day

      Memorial Day:Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:21 am EDT May 22, 2026
Forecast Valid: 9am EDT May 22, 2026-6pm EDT May 28, 2026

View Nearby Observations

Detailed Forecast


Today
E wind 10 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas 1 ft or less.
Tonight
ESE wind 6 to 8 kt becoming E after midnight. Cloudy. Seas 1 ft or less.
Saturday
E wind 10 to 13 kt. Showers likely, mainly after 11am. Seas 1 ft or less.
Saturday Night
E wind 15 to 20 kt, with gusts as high as 26 kt. Rain, with thunderstorms also possible after 2am. Seas around 1 ft.
Sunday
E wind 18 to 21 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 27 kt. Rain and possibly a thunderstorm before 2pm, then rain likely. Seas around 1 ft.
Sunday Night
ENE wind 5 to 10 kt becoming N after midnight. Rain likely, mainly before 8pm. Seas 1 ft or less.
Memorial Day
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Mostly cloudy. 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: 6:21 am EDT May 22, 2026
Forecast Valid: 9am EDT May 22, 2026-6pm EDT May 28, 2026
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