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New York, NY Local Forecast Office

49NM SSE Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind 5 to 10 kt becoming N in the evening. Mostly cloudy. Seas around 4 ft.

      SSE 10kt
      4ft

    • Thursday

      Thursday:NNW wind 7 to 9 kt becoming WSW in the afternoon. Partly sunny. Seas around 4 ft.

      WSW 9kt
      4ft

    • Thursday Night

      Thursday Night:WSW wind 9 to 11 kt becoming N after midnight. Mostly cloudy. Seas 3 to 4 ft.

      N 11kt
      3-4ft

    • Friday

      Friday:NE wind 5 to 9 kt. Partly sunny. Seas 2 to 3 ft.

      NE 9kt
      2-3ft

    • Friday Night

      Friday Night:SE wind around 8 kt. A slight chance of showers after 2am.   Seas around 2 ft.

      SE 8kt
      2ft

    • Saturday

      Saturday:E wind 9 to 13 kt. Showers likely, mainly after 2pm.   Seas 2 to 3 ft.

      E 13kt
      2-3ft

    • Saturday Night

      Saturday Night:E wind around 14 kt. Showers likely.   Seas around 4 ft.

      E 14kt
      4ft

    • Sunday

      Sunday:ENE wind around 16 kt. A chance of showers.   Seas around 5 ft.

      ENE 16kt
      5ft

    • Sunday Night

      Sunday Night:ENE wind 13 to 15 kt. Mostly cloudy. Seas around 4 ft.

      ENE 15kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 1:39 pm EDT Apr 22, 2026
Forecast Valid: 6pm EDT Apr 22, 2026-6pm EDT Apr 29, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSE wind 5 to 10 kt becoming N in the evening. Mostly cloudy. Seas around 4 ft.
Thursday
NNW wind 7 to 9 kt becoming WSW in the afternoon. Partly sunny. Seas around 4 ft.
Thursday Night
WSW wind 9 to 11 kt becoming N after midnight. Mostly cloudy. Seas 3 to 4 ft.
Friday
NE wind 5 to 9 kt. Partly sunny. Seas 2 to 3 ft.
Friday Night
SE wind around 8 kt. A slight chance of showers after 2am. Seas around 2 ft.
Saturday
E wind 9 to 13 kt. Showers likely, mainly after 2pm. Seas 2 to 3 ft.
Saturday Night
E wind around 14 kt. Showers likely. Seas around 4 ft.
Sunday
ENE wind around 16 kt. A chance of showers. Seas around 5 ft.
Sunday Night
ENE wind 13 to 15 kt. Mostly cloudy. Seas around 4 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°N 72.73°W
Last Update: 1:39 pm EDT Apr 22, 2026
Forecast Valid: 6pm EDT Apr 22, 2026-6pm EDT Apr 29, 2026
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