Hazardous Weather Conditions

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New York, NY Local Forecast Office

5NM SSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds less than 5 kt becoming N around 6 kt after midnight. Patchy fog between 11pm and 2am.  Seas 1 ft or less.

      ⇑N 6kt
      < 1ft

    • Sunday

      Sunday:NNE wind 7 to 10 kt becoming N in the afternoon. Snow likely, mainly before 1pm.   Seas around 1 ft.

      NNE 10kt
      1ft

    • Sunday Night

      Sunday Night:N wind around 12 kt. Mostly clear. Seas around 1 ft.

      N 12kt
      1ft

    • Monday

      Monday:N wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

      N 10kt⇓
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:S wind 6 to 11 kt. A chance of rain and snow before 10am, then rain likely.   Seas 1 ft or less.

      S 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 12 to 14 kt becoming SW after midnight. Winds could gust as high as 20 kt. Rain.   Seas 1 ft or less.

      SSW 14kt
      < 1ft

    • Wednesday

      Wednesday:WSW wind 6 to 11 kt becoming NNE in the afternoon. Cloudy. Seas 1 ft or less.

      WSW 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of rain.   Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:27 pm EST Feb 28, 2026
Forecast Valid: 10pm EST Feb 28, 2026-6pm EST Mar 7, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds less than 5 kt becoming N around 6 kt after midnight. Patchy fog between 11pm and 2am. Seas 1 ft or less.
Sunday
NNE wind 7 to 10 kt becoming N in the afternoon. Snow likely, mainly before 1pm. Seas around 1 ft.
Sunday Night
N wind around 12 kt. Mostly clear. Seas around 1 ft.
Monday
N wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Tuesday
S wind 6 to 11 kt. A chance of rain and snow before 10am, then rain likely. Seas 1 ft or less.
Tuesday Night
S wind 12 to 14 kt becoming SW after midnight. Winds could gust as high as 20 kt. Rain. Seas 1 ft or less.
Wednesday
WSW wind 6 to 11 kt becoming NNE in the afternoon. Cloudy. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A chance of rain. 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: 40.67°N 73.29°W
Last Update: 6:27 pm EST Feb 28, 2026
Forecast Valid: 10pm EST Feb 28, 2026-6pm EST Mar 7, 2026
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