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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. A slight chance of rain and snow showers after 4pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. A slight chance of snow showers before 7pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday Night

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

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SW around 6 kt. Mostly sunny. Seas 1 ft or less.

      ⇑SW 6kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds less than 5 kt becoming N around 6 kt after midnight. Partly cloudy. Seas 1 ft or less.

      ⇑N 6kt
      < 1ft

    • Sunday

      Sunday:NNW wind 7 to 11 kt. Partly sunny. Seas 1 ft or less.

      NNW 11kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind 10 to 12 kt. Mostly clear. Seas around 1 ft.

      N 12kt
      1ft

    • Monday

      Monday:N wind 6 to 9 kt. A chance of snow.   Seas 1 ft or less.

      N 9kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 12:59 pm EST Feb 26, 2026
Forecast Valid: 3pm EST Feb 26, 2026-6pm EST Mar 5, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
Variable winds 5 kt or less. A slight chance of rain and snow showers after 4pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. A slight chance of snow showers before 7pm. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SW around 6 kt. Mostly sunny. Seas 1 ft or less.
Saturday Night
Variable winds less than 5 kt becoming N around 6 kt after midnight. Partly cloudy. Seas 1 ft or less.
Sunday
NNW wind 7 to 11 kt. Partly sunny. Seas 1 ft or less.
Sunday Night
N wind 10 to 12 kt. Mostly clear. Seas around 1 ft.
Monday
N wind 6 to 9 kt. A chance of snow. 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: 40.91°N 73.39°W
Last Update: 12:59 pm EST Feb 26, 2026
Forecast Valid: 3pm EST Feb 26, 2026-6pm EST Mar 5, 2026
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