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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind 6 to 9 kt becoming NW 13 to 18 kt in the morning. Winds could gust as high as 24 kt. Showers, mainly between 11am and 5pm.  Areas of fog before 8am.  Seas around 2 ft.

      ⇑NW 18kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:WNW wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. A slight chance of showers before 8pm.   Seas around 2 ft.

      WNW 12kt⇓
      2ft

    • Monday

      Monday:NW wind around 11 kt. A chance of showers.   Seas around 2 ft.

      NW 11kt
      2ft

    • Monday Night

      Monday Night:NNW wind around 14 kt. Partly cloudy. Seas around 2 ft.

      NNW 14kt
      2ft

    • Tuesday

      Tuesday:N wind 6 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 1 ft.

      N 10kt
      1ft

    • Tuesday Night

      Tuesday Night:S wind around 15 kt. Increasing clouds. Seas 2 to 3 ft.

      S 15kt
      2-3ft

    • Wednesday

      Wednesday:S wind 11 to 13 kt. Partly sunny. Seas around 3 ft.

      S 13kt
      3ft

    • Wednesday Night

      Wednesday Night:S wind 7 to 9 kt becoming E after midnight. Partly cloudy. Seas around 2 ft.

      S 9kt
      2ft

    • Thursday

      Thursday:NNW wind 6 to 8 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.

      SW 8kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 4:26 am EDT Apr 19, 2026
Forecast Valid: 6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING

Today
ESE wind 6 to 9 kt becoming NW 13 to 18 kt in the morning. Winds could gust as high as 24 kt. Showers, mainly between 11am and 5pm. Areas of fog before 8am. Seas around 2 ft.
Tonight
WNW wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. A slight chance of showers before 8pm. Seas around 2 ft.
Monday
NW wind around 11 kt. A chance of showers. Seas around 2 ft.
Monday Night
NNW wind around 14 kt. Partly cloudy. Seas around 2 ft.
Tuesday
N wind 6 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
S wind around 15 kt. Increasing clouds. Seas 2 to 3 ft.
Wednesday
S wind 11 to 13 kt. Partly sunny. Seas around 3 ft.
Wednesday Night
S wind 7 to 9 kt becoming E after midnight. Partly cloudy. Seas around 2 ft.
Thursday
NNW wind 6 to 8 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 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: 4:26 am EDT Apr 19, 2026
Forecast Valid: 6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
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