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New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind around 14 kt. Rain likely, mainly after 4pm.   Seas 2 to 3 ft.

      S 14kt
      2-3ft

    • Tonight

      Tonight:SSE wind 15 to 18 kt becoming S 19 to 22 kt after midnight. Rain, mainly before 4am.   Seas 3 ft building to 5 ft.

      ⇑S 22kt
      Waves Building5ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:SSW wind around 15 kt. Rain, mainly before 1pm.   Seas around 4 ft.

      SSW 15kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:SW wind 15 to 20 kt becoming W 22 to 27 kt in the evening. A slight chance of rain before 1am.   Seas 4 ft building to 6 ft.

      ⇑W 27kt
      Waves Building6ft

      Small Craft Advisory
      Small Craft Advisory

    • Thanksgiving Day

      Thanksgiving Day:W wind around 26 kt, with gusts as high as 33 kt. Mostly sunny. Seas around 6 ft.

      W 26kt
      6ft

    • Thursday Night

      Thursday Night:W wind 29 to 31 kt. Partly cloudy. Seas around 6 ft.

      W 31kt
      6ft

    • Friday

      Friday:W wind 29 to 31 kt. Mostly sunny. Seas around 6 ft.

      W 31kt
      6ft

    • Friday Night

      Friday Night:WNW wind 28 to 31 kt decreasing to 23 to 26 kt after midnight. Mostly clear. Seas 6 ft subsiding to 4 ft.

      WNW 31kt⇓
      6ftWaves Subsiding

    • Saturday

      Saturday:WNW wind 17 to 20 kt decreasing to 12 to 15 kt in the afternoon. Sunny. Seas 2 to 3 ft.

      WNW 20kt⇓
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 5:27 am EST Nov 25, 2025
Forecast Valid: 9am EST Nov 25, 2025-6pm EST Dec 1, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH

Today
S wind around 14 kt. Rain likely, mainly after 4pm. Seas 2 to 3 ft.
Tonight
SSE wind 15 to 18 kt becoming S 19 to 22 kt after midnight. Rain, mainly before 4am. Seas 3 ft building to 5 ft.
Wednesday
SSW wind around 15 kt. Rain, mainly before 1pm. Seas around 4 ft.
Wednesday Night
SW wind 15 to 20 kt becoming W 22 to 27 kt in the evening. A slight chance of rain before 1am. Seas 4 ft building to 6 ft.
Thanksgiving Day
W wind around 26 kt, with gusts as high as 33 kt. Mostly sunny. Seas around 6 ft.
Thursday Night
W wind 29 to 31 kt. Partly cloudy. Seas around 6 ft.
Friday
W wind 29 to 31 kt. Mostly sunny. Seas around 6 ft.
Friday Night
WNW wind 28 to 31 kt decreasing to 23 to 26 kt after midnight. Mostly clear. Seas 6 ft subsiding to 4 ft.
Saturday
WNW wind 17 to 20 kt decreasing to 12 to 15 kt in the afternoon. 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: 40.61°N 73.18°W
Last Update: 5:27 am EST Nov 25, 2025
Forecast Valid: 9am EST Nov 25, 2025-6pm EST Dec 1, 2025
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