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New York, NY Local Forecast Office

5NM SSE Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:WSW wind around 13 kt. Cloudy. Seas around 1 ft.

      WSW 13kt
      1ft

    • Tonight

      Tonight:WSW wind 5 to 9 kt becoming NW after midnight. Showers likely, mainly after 4am.   Seas 1 ft or less.

      WSW 9kt
      < 1ft

    • Saturday

      Saturday:N wind 7 to 12 kt. Showers, mainly before 10am.   Seas 1 ft or less.

      N 12kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind 7 to 11 kt. Partly cloudy. Seas 1 ft or less.

      N 11kt
      < 1ft

    • Sunday

      Sunday:NW wind 5 to 8 kt becoming WSW 11 to 14 kt in the morning. Mostly sunny. Seas 1 ft or less.

      ⇑WSW 14kt
      < 1ft

    • Sunday Night

      Sunday Night:W wind 14 to 16 kt becoming WNW after midnight. Partly cloudy. Seas around 1 ft.

      WNW 16kt
      1ft

    • Monday

      Monday:NW wind 10 to 14 kt. Sunny. Seas 1 ft or less.

      NW 14kt
      < 1ft

    • Monday Night

      Monday Night:WNW wind around 6 kt becoming SSW after midnight. Mostly cloudy. Seas 1 ft or less.

      WNW 6kt
      < 1ft

    • Tuesday

      Tuesday:S wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. A chance of rain.   Seas 1 ft or less.

      ⇑S 14kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:09 pm EST Nov 21, 2025
Forecast Valid: 1pm EST Nov 21, 2025-6pm EST Nov 27, 2025

View Nearby Observations

Detailed Forecast


This Afternoon
WSW wind around 13 kt. Cloudy. Seas around 1 ft.
Tonight
WSW wind 5 to 9 kt becoming NW after midnight. Showers likely, mainly after 4am. Seas 1 ft or less.
Saturday
N wind 7 to 12 kt. Showers, mainly before 10am. Seas 1 ft or less.
Saturday Night
N wind 7 to 11 kt. Partly cloudy. Seas 1 ft or less.
Sunday
NW wind 5 to 8 kt becoming WSW 11 to 14 kt in the morning. Mostly sunny. Seas 1 ft or less.
Sunday Night
W wind 14 to 16 kt becoming WNW after midnight. Partly cloudy. Seas around 1 ft.
Monday
NW wind 10 to 14 kt. Sunny. Seas 1 ft or less.
Monday Night
WNW wind around 6 kt becoming SSW after midnight. Mostly cloudy. Seas 1 ft or less.
Tuesday
S wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. A chance of rain. Seas 1 ft or less.

*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: 40.66°N 73.17°W
Last Update: 1:09 pm EST Nov 21, 2025
Forecast Valid: 1pm EST Nov 21, 2025-6pm EST Nov 27, 2025
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