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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. Mostly sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tonight

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

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. A slight chance of showers between 2pm and 5pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind around 6 kt. A slight chance of showers after 8pm.   Seas around 1 ft.

      SSW 6kt
      1ft

    • Thursday

      Thursday:SSW wind 5 to 8 kt. A slight chance of showers and thunderstorms after 2pm.   Seas around 1 ft.

      SSW 8kt
      1ft

    • Thursday Night

      Thursday Night:SW wind 7 to 9 kt. A chance of showers and thunderstorms between 8pm and midnight.   Seas around 1 ft.

      SW 9kt
      1ft

    • Friday

      Friday:WSW wind around 6 kt. A chance of showers and thunderstorms after 2pm.   Seas around 1 ft.

      WSW 6kt
      1ft

    • Friday Night

      Friday Night:WSW wind around 6 kt. A chance of showers.   Seas around 1 ft.

      WSW 6kt
      1ft

    • Saturday

      Saturday:WSW wind 5 to 7 kt. A chance of showers.   Seas around 1 ft.

      WSW 7kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:53 am EDT Aug 4, 2026
Forecast Valid: 5am EDT Aug 4, 2026-6pm EDT Aug 10, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. A slight chance of showers between 2pm and 5pm. Seas 1 ft or less.
Wednesday Night
SSW wind around 6 kt. A slight chance of showers after 8pm. Seas around 1 ft.
Thursday
SSW wind 5 to 8 kt. A slight chance of showers and thunderstorms after 2pm. Seas around 1 ft.
Thursday Night
SW wind 7 to 9 kt. A chance of showers and thunderstorms between 8pm and midnight. Seas around 1 ft.
Friday
WSW wind around 6 kt. A chance of showers and thunderstorms after 2pm. Seas around 1 ft.
Friday Night
WSW wind around 6 kt. A chance of showers. Seas around 1 ft.
Saturday
WSW wind 5 to 7 kt. A chance of showers. 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: 2:53 am EDT Aug 4, 2026
Forecast Valid: 5am EDT Aug 4, 2026-6pm EDT Aug 10, 2026
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