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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. A slight chance of showers and thunderstorms between 8pm and 11pm.   Seas 3 to 4 ft.

      SW 15kt⇓
      3-4ft

    • Wednesday

      Wednesday:WSW wind 7 to 12 kt becoming S in the afternoon. A slight chance of showers after 5pm.   Seas 2 to 3 ft.

      SSW 12kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SSW wind 8 to 12 kt. A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers.   Seas 2 to 3 ft.

      SSW 12kt
      2-3ft

    • Thursday

      Thursday:SW wind 7 to 11 kt becoming S in the afternoon. A slight chance of showers before 8am.   Seas around 2 ft.

      S 11kt
      2ft

    • Thursday Night

      Thursday Night:SSW wind 8 to 13 kt. A slight chance of showers after 2am.   Seas 2 to 3 ft.

      SSW 13kt
      2-3ft

    • Friday

      Friday:SW wind 7 to 10 kt. A chance of showers after 2pm.   Seas 2 to 3 ft.

      SW 10kt
      2-3ft

    • Friday Night

      Friday Night:NW wind around 9 kt becoming ENE after midnight. A chance of showers before 8pm.   Seas around 2 ft.

      NW 9kt
      2ft

    • 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 10 kt. Mostly cloudy. Seas around 2 ft.

      SE 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:12 pm EDT Apr 14, 2026
Forecast Valid: 5pm EDT Apr 14, 2026-6pm EDT Apr 21, 2026

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Detailed Forecast


Tonight
SW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. A slight chance of showers and thunderstorms between 8pm and 11pm. Seas 3 to 4 ft.
Wednesday
WSW wind 7 to 12 kt becoming S in the afternoon. A slight chance of showers after 5pm. Seas 2 to 3 ft.
Wednesday Night
SSW wind 8 to 12 kt. A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Seas 2 to 3 ft.
Thursday
SW wind 7 to 11 kt becoming S in the afternoon. A slight chance of showers before 8am. Seas around 2 ft.
Thursday Night
SSW wind 8 to 13 kt. A slight chance of showers after 2am. Seas 2 to 3 ft.
Friday
SW wind 7 to 10 kt. A chance of showers after 2pm. Seas 2 to 3 ft.
Friday Night
NW wind around 9 kt becoming ENE after midnight. A chance of showers before 8pm. Seas around 2 ft.
Saturday
ENE wind 7 to 9 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.
Saturday Night
SE wind around 10 kt. Mostly cloudy. Seas around 2 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: 2:12 pm EDT Apr 14, 2026
Forecast Valid: 5pm EDT Apr 14, 2026-6pm EDT Apr 21, 2026
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