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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind 6 to 8 kt. Mostly sunny. Seas around 3 ft.

      N 8kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:Variable winds less than 5 kt becoming SSE 5 to 8 kt in the evening. Increasing clouds. Seas 2 to 3 ft.

      ⇑SSE 8kt
      2-3ft

    • Sunday

      Sunday:SSW wind 10 to 13 kt. A slight chance of rain after 2pm.   Seas 2 to 3 ft.

      SSW 13kt
      2-3ft

    • Sunday Night

      Sunday Night:SW wind 9 to 12 kt becoming NNE after midnight. Rain and thunderstorms likely, then rain after 11pm.   Seas around 3 ft.

      SW 12kt
      3ft

    • Monday

      Monday:N wind 13 to 15 kt. Rain, mainly before 8am.   Seas around 3 ft.

      N 15kt
      3ft

    • Monday Night

      Monday Night:NNW wind 13 to 15 kt. Partly cloudy. Seas 2 to 3 ft.

      NNW 15kt
      2-3ft

    • Tuesday

      Tuesday:N wind 6 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.

      N 10kt
      2ft

    • Tuesday Night

      Tuesday Night:SSW wind 13 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.

      SSW 15kt
      2-3ft

    • Wednesday

      Wednesday:SW wind around 13 kt. Partly sunny. Seas 2 to 3 ft.

      SW 13kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 9:57 am EDT Mar 21, 2026
Forecast Valid: 1pm EDT Mar 21, 2026-6pm EDT Mar 27, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

This Afternoon
N wind 6 to 8 kt. Mostly sunny. Seas around 3 ft.
Tonight
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the evening. Increasing clouds. Seas 2 to 3 ft.
Sunday
SSW wind 10 to 13 kt. A slight chance of rain after 2pm. Seas 2 to 3 ft.
Sunday Night
SW wind 9 to 12 kt becoming NNE after midnight. Rain and thunderstorms likely, then rain after 11pm. Seas around 3 ft.
Monday
N wind 13 to 15 kt. Rain, mainly before 8am. Seas around 3 ft.
Monday Night
NNW wind 13 to 15 kt. Partly cloudy. Seas 2 to 3 ft.
Tuesday
N wind 6 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.
Tuesday Night
SSW wind 13 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.
Wednesday
SW wind around 13 kt. Partly sunny. Seas 2 to 3 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: 40.57°N 73.57°W
Last Update: 9:57 am EDT Mar 21, 2026
Forecast Valid: 1pm EDT Mar 21, 2026-6pm EDT Mar 27, 2026
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