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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNW wind around 19 kt. Cloudy during the early evening, then gradual clearing. Seas around 1 ft.

      NNW 19kt
      1ft

    • Wednesday

      Wednesday:NNW wind 12 to 15 kt decreasing to 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

      NNW 15kt⇓
      < 1ft

    • Wednesday Night

      Wednesday Night:W wind 7 to 10 kt increasing to 12 to 15 kt after midnight. Mostly clear. Seas 1 ft or less.

      ⇑W 15kt
      < 1ft

    • Thursday

      Thursday:W wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 28 kt. Mostly sunny. Seas around 1 ft.

      ⇑W 22kt
      1ft

    • Thursday Night

      Thursday Night:NW wind 19 to 24 kt becoming N 11 to 16 kt. Mostly clear. Seas 1 ft or less.

      NW 24kt⇓
      < 1ft

    • Friday

      Friday:N wind 7 to 10 kt becoming S in the afternoon. Partly sunny. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Friday Night

      Friday Night:SW wind around 8 kt becoming N after midnight. A chance of rain and snow before 1am, then a chance of rain.   Seas 1 ft or less.

      SW 8kt
      < 1ft

    • Saturday

      Saturday:NNE wind 6 to 11 kt becoming W in the afternoon. A chance of rain.   Seas 1 ft or less.

      WNW 11kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 10 to 12 kt. Partly cloudy. Seas 1 ft or less.

      W 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 5:30 pm EST Dec 2, 2025
Forecast Valid: 7pm EST Dec 2, 2025-6pm EST Dec 9, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight
NNW wind around 19 kt. Cloudy during the early evening, then gradual clearing. Seas around 1 ft.
Wednesday
NNW wind 12 to 15 kt decreasing to 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
W wind 7 to 10 kt increasing to 12 to 15 kt after midnight. Mostly clear. Seas 1 ft or less.
Thursday
W wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 28 kt. Mostly sunny. Seas around 1 ft.
Thursday Night
NW wind 19 to 24 kt becoming N 11 to 16 kt. Mostly clear. Seas 1 ft or less.
Friday
N wind 7 to 10 kt becoming S in the afternoon. Partly sunny. Seas 1 ft or less.
Friday Night
SW wind around 8 kt becoming N after midnight. A chance of rain and snow before 1am, then a chance of rain. Seas 1 ft or less.
Saturday
NNE wind 6 to 11 kt becoming W in the afternoon. A chance of rain. Seas 1 ft or less.
Saturday Night
W wind 10 to 12 kt. Partly cloudy. Seas 1 ft or less.

*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: 40.7°N 72.99°W
Last Update: 5:30 pm EST Dec 2, 2025
Forecast Valid: 7pm EST Dec 2, 2025-6pm EST Dec 9, 2025
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