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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 6 kt becoming variable and less than 5 kt. A slight chance of rain and snow showers.   Seas around 4 ft.

      N 6kt⇓
      4ft

    • Tonight

      Tonight:Variable winds less than 5 kt becoming NNE 5 to 7 kt in the evening. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

      ⇑NNE 7kt
      2-3ft

    • Friday

      Friday:NE wind around 6 kt becoming variable and less than 5 kt. Sunny. Seas around 3 ft.

      NE 6kt⇓
      3ft

    • Friday Night

      Friday Night:S wind 6 to 8 kt. Mostly clear. Seas 2 to 3 ft.

      S 8kt
      2-3ft

    • Saturday

      Saturday:SSW wind 6 to 8 kt. Sunny. Seas around 2 ft.

      SSW 8kt
      2ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 9 kt becoming N after midnight. Partly cloudy. Seas around 2 ft.

      N 9kt
      2ft

    • Sunday

      Sunday:NNW wind 10 to 13 kt. Partly sunny. Seas 2 to 3 ft.

      NNW 13kt
      2-3ft

    • Sunday Night

      Sunday Night:N wind 14 to 16 kt. Partly cloudy. Seas 2 to 3 ft.

      N 16kt
      2-3ft

    • Monday

      Monday:NNE wind 9 to 13 kt. A chance of snow.   Seas around 2 ft.

      NNE 13kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 12:59 pm EST Feb 26, 2026
Forecast Valid: 1pm EST Feb 26, 2026-6pm EST Mar 4, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
N wind around 6 kt becoming variable and less than 5 kt. A slight chance of rain and snow showers. Seas around 4 ft.
Tonight
Variable winds less than 5 kt becoming NNE 5 to 7 kt in the evening. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.
Friday
NE wind around 6 kt becoming variable and less than 5 kt. Sunny. Seas around 3 ft.
Friday Night
S wind 6 to 8 kt. Mostly clear. Seas 2 to 3 ft.
Saturday
SSW wind 6 to 8 kt. Sunny. Seas around 2 ft.
Saturday Night
WSW wind 5 to 9 kt becoming N after midnight. Partly cloudy. Seas around 2 ft.
Sunday
NNW wind 10 to 13 kt. Partly sunny. Seas 2 to 3 ft.
Sunday Night
N wind 14 to 16 kt. Partly cloudy. Seas 2 to 3 ft.
Monday
NNE wind 9 to 13 kt. A chance of snow. Seas around 2 ft.

*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: 40.53°N 73.44°W
Last Update: 12:59 pm EST Feb 26, 2026
Forecast Valid: 1pm EST Feb 26, 2026-6pm EST Mar 4, 2026
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