National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:W wind around 12 kt, with gusts as high as 22 kt. Scattered flurries. Seas around 1 ft.

      W 12kt
      1ft

    • Tonight

      Tonight:WNW wind around 12 kt, with gusts as high as 20 kt. Scattered flurries before 7pm. Seas 1 ft or less.

      WNW 12kt
      < 1ft

    • Saturday

      Saturday:W wind 7 to 11 kt. Partly sunny. Seas 1 ft or less.

      W 11kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind around 6 kt becoming variable and less than 5 kt. A slight chance of snow showers between 10pm and 1am. Seas 1 ft or less.

      W 6kt⇓
      < 1ft

    • Sunday

      Sunday:NW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less.

      ⇑NW 14kt
      < 1ft

    • Sunday Night

      Sunday Night:NW wind 13 to 16 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 22 kt. Partly cloudy. Seas 1 ft or less.

      NW 16kt⇓
      < 1ft

    • Monday

      Monday:NNW wind 5 to 7 kt becoming variable and less than 5 kt in the morning. Increasing clouds. Seas 1 ft or less.

      NNW 7kt⇓
      < 1ft

    • Monday Night

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

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:52 pm EST Jan 2, 2026
Forecast Valid: 4pm EST Jan 2, 2026-6pm EST Jan 9, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
W wind around 12 kt, with gusts as high as 22 kt. Scattered flurries. Seas around 1 ft.
Tonight
WNW wind around 12 kt, with gusts as high as 20 kt. Scattered flurries before 7pm. Seas 1 ft or less.
Saturday
W wind 7 to 11 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
W wind around 6 kt becoming variable and less than 5 kt. A slight chance of snow showers between 10pm and 1am. Seas 1 ft or less.
Sunday
NW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less.
Sunday Night
NW wind 13 to 16 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 22 kt. Partly cloudy. Seas 1 ft or less.
Monday
NNW wind 5 to 7 kt becoming variable and less than 5 kt in the morning. Increasing clouds. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Mostly 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: 40.91°N 73.39°W
Last Update: 3:52 pm EST Jan 2, 2026
Forecast Valid: 4pm EST Jan 2, 2026-6pm EST Jan 9, 2026
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