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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:N wind 7 to 12 kt. Scattered rain and snow showers, mainly after 4am.   Seas around 3 ft.

      N 12kt
      3ft

    • Saturday

      Saturday:N wind 14 to 19 kt. Scattered snow showers before 8am.   Seas around 3 ft.

      N 19kt
      3ft

    • Saturday Night

      Saturday Night:NW wind 10 to 13 kt becoming N 5 to 8 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

      NW 13kt⇓
      2-3ft

    • Sunday

      Sunday:S wind 7 to 12 kt increasing to 16 to 21 kt. Mostly sunny. Seas 2 to 3 ft.

      ⇑S 21kt
      2-3ft

    • Sunday Night

      Sunday Night:SW wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Mostly cloudy. Seas 6 ft subsiding to 4 ft.

      SW 24kt⇓
      6ftWaves Subsiding

    • Monday

      Monday:SW wind 14 to 16 kt. Partly sunny. Seas 3 to 4 ft.

      SW 16kt
      3-4ft

    • Monday Night

      Monday Night:SSW wind around 13 kt. A chance of rain after 2am.   Seas 3 to 4 ft.

      SSW 13kt
      3-4ft

    • Tuesday

      Tuesday:SSW wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. A chance of rain.   Seas around 4 ft.

      ⇑SSW 20kt
      4ft

    • Tuesday Night

      Tuesday Night:SSW wind 27 to 29 kt. A chance of rain.   Seas around 6 ft.

      SSW 29kt
      6ft


Associated Zone Forecast which includes this point

Last Update: 7:14 pm EDT Mar 27, 2026
Forecast Valid: 8pm EDT Mar 27, 2026-6pm EDT Apr 3, 2026

View Nearby Observations

Detailed Forecast


Tonight
N wind 7 to 12 kt. Scattered rain and snow showers, mainly after 4am. Seas around 3 ft.
Saturday
N wind 14 to 19 kt. Scattered snow showers before 8am. Seas around 3 ft.
Saturday Night
NW wind 10 to 13 kt becoming N 5 to 8 kt after midnight. Partly cloudy. Seas 2 to 3 ft.
Sunday
S wind 7 to 12 kt increasing to 16 to 21 kt. Mostly sunny. Seas 2 to 3 ft.
Sunday Night
SW wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Mostly cloudy. Seas 6 ft subsiding to 4 ft.
Monday
SW wind 14 to 16 kt. Partly sunny. Seas 3 to 4 ft.
Monday Night
SSW wind around 13 kt. A chance of rain after 2am. Seas 3 to 4 ft.
Tuesday
SSW wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. A chance of rain. Seas around 4 ft.
Tuesday Night
SSW wind 27 to 29 kt. A chance of rain. Seas around 6 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: 7:14 pm EDT Mar 27, 2026
Forecast Valid: 8pm EDT Mar 27, 2026-6pm EDT Apr 3, 2026
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