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

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:ESE wind 13 to 16 kt increasing to 16 to 19 kt after midnight. Showers, with thunderstorms also possible after 5am. Seas 1 ft or less.

      ⇑ESE 19kt
      < 1ft

    • Monday

      Monday:S wind 20 to 24 kt, with gusts as high as 33 kt. Showers and possibly a thunderstorm. Patchy fog. Seas around 1 ft.

      S 24kt
      1ft

    • Monday Night

      Monday Night:S wind 30 to 33 kt becoming WSW 26 to 29 kt after midnight. Winds could gust as high as 42 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas around 1 ft.

      S 33kt⇓
      1ft

    • Tuesday

      Tuesday:W wind 21 to 23 kt. A chance of showers before 8am. Seas around 1 ft.

      W 23kt
      1ft

    • Tuesday Night

      Tuesday Night:WNW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. Partly cloudy. Seas around 1 ft.

      WNW 22kt⇓
      1ft

    • Wednesday

      Wednesday:WNW wind 5 to 9 kt becoming SW in the afternoon. Increasing clouds. Seas 1 ft or less.

      WNW 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Thursday

      Thursday:S wind 5 to 8 kt. Partly sunny. Seas 1 ft or less.

      S 8kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind around 6 kt becoming SW after midnight. Mostly cloudy. Seas 1 ft or less.

      SSE 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:22 pm EDT Mar 15, 2026
Forecast Valid: 8pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT

Tonight
ESE wind 13 to 16 kt increasing to 16 to 19 kt after midnight. Showers, with thunderstorms also possible after 5am. Seas 1 ft or less.
Monday
S wind 20 to 24 kt, with gusts as high as 33 kt. Showers and possibly a thunderstorm. Patchy fog. Seas around 1 ft.
Monday Night
S wind 30 to 33 kt becoming WSW 26 to 29 kt after midnight. Winds could gust as high as 42 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas around 1 ft.
Tuesday
W wind 21 to 23 kt. A chance of showers before 8am. Seas around 1 ft.
Tuesday Night
WNW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. Partly cloudy. Seas around 1 ft.
Wednesday
WNW wind 5 to 9 kt becoming SW in the afternoon. Increasing clouds. Seas 1 ft or less.
Wednesday Night
S wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
S wind 5 to 8 kt. Partly sunny. Seas 1 ft or less.
Thursday Night
SSE wind around 6 kt becoming SW after midnight. 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: 2:22 pm EDT Mar 15, 2026
Forecast Valid: 8pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
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