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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind 8 to 11 kt. Mostly sunny. Seas around 2 ft.

      S 11kt
      2ft

    • Tonight

      Tonight:SSW wind 7 to 11 kt becoming W after midnight. A chance of showers and thunderstorms, mainly between 11pm and 2am.   Seas 2 to 3 ft.

      SSW 11kt
      2-3ft

    • Thursday

      Thursday:SW wind 7 to 11 kt becoming S in the afternoon. Partly sunny. Seas around 2 ft.

      S 11kt
      2ft

    • Thursday Night

      Thursday Night:SW wind 8 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.

      SW 13kt
      2-3ft

    • Friday

      Friday:WSW wind 7 to 9 kt. A chance of showers, mainly after 2pm.   Seas 2 to 3 ft.

      WSW 9kt
      2-3ft

    • Friday Night

      Friday Night:WNW wind around 8 kt becoming NE after midnight. A chance of showers before 8pm.   Seas 2 to 3 ft.

      WNW 8kt
      2-3ft

    • Saturday

      Saturday:ENE wind 7 to 9 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.

      ESE 9kt
      2ft

    • Saturday Night

      Saturday Night:SE wind around 9 kt. Mostly cloudy. Seas around 2 ft.

      SE 9kt
      2ft

    • Sunday

      Sunday:SSE wind 11 to 14 kt becoming W in the afternoon. Showers likely.   Seas 2 to 3 ft.

      W 14kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 5:23 am EDT Apr 15, 2026
Forecast Valid: 12pm EDT Apr 15, 2026-6pm EDT Apr 21, 2026

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Detailed Forecast


This Afternoon
S wind 8 to 11 kt. Mostly sunny. Seas around 2 ft.
Tonight
SSW wind 7 to 11 kt becoming W after midnight. A chance of showers and thunderstorms, mainly between 11pm and 2am. Seas 2 to 3 ft.
Thursday
SW wind 7 to 11 kt becoming S in the afternoon. Partly sunny. Seas around 2 ft.
Thursday Night
SW wind 8 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.
Friday
WSW wind 7 to 9 kt. A chance of showers, mainly after 2pm. Seas 2 to 3 ft.
Friday Night
WNW wind around 8 kt becoming NE after midnight. A chance of showers before 8pm. Seas 2 to 3 ft.
Saturday
ENE wind 7 to 9 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.
Saturday Night
SE wind around 9 kt. Mostly cloudy. Seas around 2 ft.
Sunday
SSE wind 11 to 14 kt becoming W in the afternoon. Showers likely. Seas 2 to 3 ft.

Winds and seas may be higher in and near tstms.

*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: 5:23 am EDT Apr 15, 2026
Forecast Valid: 12pm EDT Apr 15, 2026-6pm EDT Apr 21, 2026
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