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

Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NNW wind 17 to 19 kt, with gusts as high as 27 kt. Partly cloudy. Seas around 1 ft.

      NNW 19kt
      1ft

    • Saturday

      Saturday:NW wind 13 to 16 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 22 kt. Mostly sunny. Seas 1 ft or less.

      NW 16kt⇓
      < 1ft

    • Saturday Night

      Saturday Night:NNW wind around 8 kt becoming NNE after midnight. A chance of snow, mainly after 4am. Seas 1 ft or less.

      NNW 8kt
      < 1ft

    • Sunday

      Sunday:ENE wind 9 to 14 kt increasing to 16 to 21 kt. Winds could gust as high as 29 kt. Snow, mainly after 7am. The snow could be heavy at times. Seas 1 ft or less.

      ⇑ENE 21kt
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 22 to 25 kt decreasing to 18 to 21 kt after midnight. Snow before 10pm, then snow and sleet between 10pm and 4am, then snow likely after 4am. The snow could be heavy at times. Seas around 1 ft.

      ENE 25kt⇓
      1ft

    • Monday

      Monday:NNE wind 13 to 17 kt becoming WNW in the afternoon. Winds could gust as high as 23 kt. Snow likely, mainly before 1pm. Seas around 1 ft.

      WNW 17kt
      1ft

    • Monday Night

      Monday Night:WNW wind 20 to 22 kt. Partly cloudy. Seas around 1 ft.

      WNW 22kt
      1ft

    • Tuesday

      Tuesday:WSW wind 16 to 19 kt. Mostly sunny. Seas around 1 ft.

      WSW 19kt
      1ft

    • Tuesday Night

      Tuesday Night:WSW wind 14 to 19 kt. Partly cloudy. Seas around 1 ft.

      WSW 19kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 11:14 pm EST Jan 23, 2026
Forecast Valid: 12am EST Jan 24, 2026-6pm EST Jan 30, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 6 AM EST SATURDAY...

Overnight
NNW wind 17 to 19 kt, with gusts as high as 27 kt. Partly cloudy. Seas around 1 ft.
Saturday
NW wind 13 to 16 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 22 kt. Mostly sunny. Seas 1 ft or less.
Saturday Night
NNW wind around 8 kt becoming NNE after midnight. A chance of snow, mainly after 4am. Seas 1 ft or less.
Sunday
ENE wind 9 to 14 kt increasing to 16 to 21 kt. Winds could gust as high as 29 kt. Snow, mainly after 7am. The snow could be heavy at times. Seas 1 ft or less.
Sunday Night
ENE wind 22 to 25 kt decreasing to 18 to 21 kt after midnight. Snow before 10pm, then snow and sleet between 10pm and 4am, then snow likely after 4am. The snow could be heavy at times. Seas around 1 ft.
Monday
NNE wind 13 to 17 kt becoming WNW in the afternoon. Winds could gust as high as 23 kt. Snow likely, mainly before 1pm. Seas around 1 ft.
Monday Night
WNW wind 20 to 22 kt. Partly cloudy. Seas around 1 ft.
Tuesday
WSW wind 16 to 19 kt. Mostly sunny. Seas around 1 ft.
Tuesday Night
WSW wind 14 to 19 kt. Partly cloudy. Seas around 1 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: 40.91°N 73.39°W
Last Update: 11:14 pm EST Jan 23, 2026
Forecast Valid: 12am EST Jan 24, 2026-6pm EST Jan 30, 2026
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