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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 6 to 8 kt. Areas of fog.  Seas 2 to 3 ft.

      SW 8kt
      2-3ft

    • Tuesday

      Tuesday:S wind 5 to 9 kt. Mostly cloudy. Seas around 2 ft.

      S 9kt
      2ft

    • Tuesday Night

      Tuesday Night:S wind around 8 kt. Patchy fog.  Seas around 2 ft.

      S 8kt
      2ft

    • Wednesday

      Wednesday:S wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers.   Seas 2 to 3 ft.

      ⇑S 14kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SSW wind around 17 kt, with gusts as high as 24 kt. A chance of showers.   Seas around 4 ft.

      SSW 17kt
      4ft

    • Thursday

      Thursday:WSW wind around 19 kt becoming WNW in the afternoon. Winds could gust as high as 26 kt. Rain likely, mainly before 2pm.   Seas around 4 ft.

      WSW 19kt
      4ft

    • Thursday Night

      Thursday Night:NW wind 15 to 18 kt decreasing to 12 to 15 kt after midnight. A chance of rain before 8pm.   Seas 3 to 4 ft.

      NW 18kt⇓
      3-4ft

    • Friday

      Friday:WNW wind 9 to 12 kt becoming S 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Mostly sunny. Seas 2 to 3 ft.

      ⇑S 18kt
      2-3ft

    • Friday Night

      Friday Night:S wind 18 to 22 kt becoming WSW after midnight. A chance of rain.   Seas around 5 ft.

      S 22kt
      5ft


Associated Zone Forecast which includes this point

Last Update: 9:06 pm EDT Mar 9, 2026
Forecast Valid: 9pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026

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Detailed Forecast

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT TUESDAY...

Tonight
SW wind 6 to 8 kt. Areas of fog. Seas 2 to 3 ft.
Tuesday
S wind 5 to 9 kt. Mostly cloudy. Seas around 2 ft.
Tuesday Night
S wind around 8 kt. Patchy fog. Seas around 2 ft.
Wednesday
S wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers. Seas 2 to 3 ft.
Wednesday Night
SSW wind around 17 kt, with gusts as high as 24 kt. A chance of showers. Seas around 4 ft.
Thursday
WSW wind around 19 kt becoming WNW in the afternoon. Winds could gust as high as 26 kt. Rain likely, mainly before 2pm. Seas around 4 ft.
Thursday Night
NW wind 15 to 18 kt decreasing to 12 to 15 kt after midnight. A chance of rain before 8pm. Seas 3 to 4 ft.
Friday
WNW wind 9 to 12 kt becoming S 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
S wind 18 to 22 kt becoming WSW after midnight. A chance of rain. Seas around 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: 9:06 pm EDT Mar 9, 2026
Forecast Valid: 9pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
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