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

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NW wind around 17 kt, with gusts as high as 24 kt. Patchy blowing snow. Seas 1 ft or less.

      NW 17kt
      < 1ft

    • Tuesday

      Tuesday:NW wind 12 to 15 kt, with gusts as high as 22 kt. Mostly sunny. Seas 1 ft or less.

      NW 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind 8 to 11 kt becoming S 11 to 14 kt after midnight. Winds could gust as high as 20 kt. A chance of snow showers after 1am, mixing with rain after 4am. Seas 1 ft or less.

      ⇑S 14kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 14 to 16 kt, with gusts as high as 22 kt. Rain and snow likely, mainly before 1pm. Seas 1 ft or less.

      SSW 16kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 10 to 13 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

      SW 13kt
      < 1ft

    • Thursday

      Thursday:W wind 7 to 9 kt becoming SE in the afternoon. A chance of rain and snow after 1pm. Seas 1 ft or less.

      SE 9kt
      < 1ft

    • Thursday Night

      Thursday Night:ESE wind around 11 kt becoming NNW after midnight. Rain and snow likely, mainly before 1am. Seas 1 ft or less.

      ESE 11kt
      < 1ft

    • Friday

      Friday:NW wind 8 to 10 kt. Mostly sunny. Seas 1 ft or less.

      NW 10kt
      < 1ft

    • Friday Night

      Friday Night:WNW wind around 6 kt becoming SW after midnight. Mostly clear. Seas 1 ft or less.

      WNW 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 12:58 pm EST Feb 23, 2026
Forecast Valid: 11pm EST Feb 23, 2026-6pm EST Mar 2, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY...

Overnight
NW wind around 17 kt, with gusts as high as 24 kt. Patchy blowing snow. Seas 1 ft or less.
Tuesday
NW wind 12 to 15 kt, with gusts as high as 22 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
WSW wind 8 to 11 kt becoming S 11 to 14 kt after midnight. Winds could gust as high as 20 kt. A chance of snow showers after 1am, mixing with rain after 4am. Seas 1 ft or less.
Wednesday
SSW wind 14 to 16 kt, with gusts as high as 22 kt. Rain and snow likely, mainly before 1pm. Seas 1 ft or less.
Wednesday Night
SW wind 10 to 13 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
W wind 7 to 9 kt becoming SE in the afternoon. A chance of rain and snow after 1pm. Seas 1 ft or less.
Thursday Night
ESE wind around 11 kt becoming NNW after midnight. Rain and snow likely, mainly before 1am. Seas 1 ft or less.
Friday
NW wind 8 to 10 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
WNW wind around 6 kt becoming SW after midnight. Mostly clear. 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: 40.62°N 73.59°W
Last Update: 12:58 pm EST Feb 23, 2026
Forecast Valid: 11pm EST Feb 23, 2026-6pm EST Mar 2, 2026
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