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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 17 to 20 kt, with gusts as high as 31 kt. Sunny. Seas 3 to 4 ft.

      WNW 20kt
      3-4ft

      Gale Warning
      Gale Warning

    • Tonight

      Tonight:W wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 23 kt. Mostly clear. Seas 2 to 3 ft.

      W 15kt⇓
      2-3ft

    • Wednesday

      Wednesday:W wind 7 to 10 kt becoming SSW 16 to 21 kt. Winds could gust as high as 31 kt. Mostly sunny. Seas 2 ft building to 4 ft.

      ⇑SSW 21kt
      Waves Building4ft

    • Wednesday Night

      Wednesday Night:SW wind 23 to 26 kt becoming WNW 26 to 29 kt after midnight. Winds could gust as high as 39 kt. Partly cloudy. Seas 6 ft subsiding to 4 ft.

      ⇑WNW 29kt
      6ftWaves Subsiding

    • Thursday

      Thursday:NW wind 17 to 21 kt, with gusts as high as 30 kt. Sunny. Seas 3 to 4 ft.

      NW 21kt
      3-4ft

    • Thursday Night

      Thursday Night:NW wind 12 to 15 kt becoming NNW 6 to 9 kt after midnight. Mostly clear. Seas 1 to 2 ft.

      NW 15kt⇓
      1-2ft

    • Friday

      Friday:SSW wind 6 to 11 kt increasing to 18 to 23 kt. Winds could gust as high as 31 kt. Partly sunny. Seas 1 ft building to 4 ft.

      ⇑SSW 23kt
      Waves Building4ft

    • Friday Night

      Friday Night:SSW wind 22 to 25 kt decreasing to 19 to 22 kt after midnight. Winds could gust as high as 31 kt. Rain likely.   Seas 5 to 6 ft.

      SSW 25kt⇓
      5-6ft

    • Saturday

      Saturday:SW wind 14 to 17 kt becoming W in the afternoon. Winds could gust as high as 23 kt. A chance of rain.   Seas 4 to 5 ft.

      SW 17kt
      4-5ft


Associated Zone Forecast which includes this point

Last Update: 1:01 am EST Nov 4, 2025
Forecast Valid: 6am EST Nov 4, 2025-6pm EST Nov 10, 2025

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

Today
WNW wind 17 to 20 kt, with gusts as high as 31 kt. Sunny. Seas 3 to 4 ft.
Tonight
W wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 23 kt. Mostly clear. Seas 2 to 3 ft.
Wednesday
W wind 7 to 10 kt becoming SSW 16 to 21 kt. Winds could gust as high as 31 kt. Mostly sunny. Seas 2 ft building to 4 ft.
Wednesday Night
SW wind 23 to 26 kt becoming WNW 26 to 29 kt after midnight. Winds could gust as high as 39 kt. Partly cloudy. Seas 6 ft subsiding to 4 ft.
Thursday
NW wind 17 to 21 kt, with gusts as high as 30 kt. Sunny. Seas 3 to 4 ft.
Thursday Night
NW wind 12 to 15 kt becoming NNW 6 to 9 kt after midnight. Mostly clear. Seas 1 to 2 ft.
Friday
SSW wind 6 to 11 kt increasing to 18 to 23 kt. Winds could gust as high as 31 kt. Partly sunny. Seas 1 ft building to 4 ft.
Friday Night
SSW wind 22 to 25 kt decreasing to 19 to 22 kt after midnight. Winds could gust as high as 31 kt. Rain likely. Seas 5 to 6 ft.
Saturday
SW wind 14 to 17 kt becoming W in the afternoon. Winds could gust as high as 23 kt. A chance of rain. Seas 4 to 5 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: 1:01 am EST Nov 4, 2025
Forecast Valid: 6am EST Nov 4, 2025-6pm EST Nov 10, 2025
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