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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 18 to 20 kt becoming WNW after midnight. A slight chance of showers before 11pm.   Seas around 4 ft.

      WNW 20kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:NW wind 22 to 25 kt becoming N in the afternoon. Mostly sunny. Seas 3 to 4 ft.

      N 25kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday Night

      Saturday Night:NNE wind 10 to 13 kt becoming NNW 5 to 8 kt after midnight. Partly cloudy. Seas around 2 ft.

      NNE 13kt⇓
      2ft

    • Sunday

      Sunday:NW wind 7 to 10 kt becoming SW 10 to 13 kt in the afternoon. Sunny. Seas around 2 ft.

      ⇑SW 13kt
      2ft

    • Sunday Night

      Sunday Night:WSW wind 11 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.

      WSW 15kt
      3-4ft

    • Monday

      Monday:WSW wind 5 to 8 kt becoming S in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      S 8kt
      2-3ft

    • Monday Night

      Monday Night:E wind 6 to 8 kt becoming NE after midnight. Partly cloudy. Seas around 2 ft.

      ENE 8kt
      2ft

    • Tuesday

      Tuesday:NNE wind 6 to 9 kt becoming E in the afternoon. Mostly sunny. Seas around 2 ft.

      NNE 9kt
      2ft

    • Tuesday Night

      Tuesday Night:SE wind 5 to 8 kt becoming N after midnight. Partly cloudy. Seas around 2 ft.

      N 8kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 8:54 pm EDT May 29, 2026
Forecast Valid: 10pm EDT May 29, 2026-6pm EDT Jun 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

Tonight
SW wind 18 to 20 kt becoming WNW after midnight. A slight chance of showers before 11pm. Seas around 4 ft.
Saturday
NW wind 22 to 25 kt becoming N in the afternoon. Mostly sunny. Seas 3 to 4 ft.
Saturday Night
NNE wind 10 to 13 kt becoming NNW 5 to 8 kt after midnight. Partly cloudy. Seas around 2 ft.
Sunday
NW wind 7 to 10 kt becoming SW 10 to 13 kt in the afternoon. Sunny. Seas around 2 ft.
Sunday Night
WSW wind 11 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.
Monday
WSW wind 5 to 8 kt becoming S in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Monday Night
E wind 6 to 8 kt becoming NE after midnight. Partly cloudy. Seas around 2 ft.
Tuesday
NNE wind 6 to 9 kt becoming E in the afternoon. Mostly sunny. Seas around 2 ft.
Tuesday Night
SE wind 5 to 8 kt becoming N after midnight. Partly cloudy. 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: 8:54 pm EDT May 29, 2026
Forecast Valid: 10pm EDT May 29, 2026-6pm EDT Jun 5, 2026
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