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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers and thunderstorms.  Patchy fog after 4am.  Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:WSW wind 6 to 8 kt. A chance of showers and thunderstorms, mainly after 5pm.  Patchy fog before 7am.  Seas around 1 ft.

      WSW 8kt
      1ft

    • Saturday Night

      Saturday Night:WSW wind around 7 kt. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.   Seas around 1 ft.

      WSW 7kt
      1ft

    • Sunday

      Sunday:W wind around 7 kt. Sunny. Seas around 1 ft.

      W 7kt
      1ft

    • Sunday Night

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

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft

    • Monday Night

      Monday Night:WSW wind around 7 kt. Partly cloudy. Seas around 1 ft.

      WSW 7kt
      1ft

    • Tuesday

      Tuesday:W wind 6 to 10 kt. A chance of showers and thunderstorms after 2pm.   Seas around 1 ft.

      W 10kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:51 am EDT Aug 7, 2026
Forecast Valid: 9am EDT Aug 7, 2026-6pm EDT Aug 13, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. A chance of showers and thunderstorms. Patchy fog after 4am. Seas 1 ft or less.
Saturday
WSW wind 6 to 8 kt. A chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 7am. Seas around 1 ft.
Saturday Night
WSW wind around 7 kt. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas around 1 ft.
Sunday
W wind around 7 kt. Sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
WSW wind around 7 kt. Partly cloudy. Seas around 1 ft.
Tuesday
W wind 6 to 10 kt. A chance of showers and thunderstorms after 2pm. 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: 2:51 am EDT Aug 7, 2026
Forecast Valid: 9am EDT Aug 7, 2026-6pm EDT Aug 13, 2026
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