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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Wednesday

      Wednesday:S wind 7 to 10 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 7 to 9 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Thursday

      Thursday:W wind around 7 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      W 7kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

      W 6kt⇓
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. A chance of showers before 8am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers between 8pm and 2am. Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Saturday

      Saturday:N wind around 6 kt becoming WNW in the afternoon. Partly sunny. Seas 1 ft or less.

      NNW 6kt
      < 1ft

    • Saturday Night

      Saturday Night:NW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      NW 6kt⇓
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:24 pm EDT Jun 9, 2026
Forecast Valid: 8pm EDT Jun 9, 2026-6pm EDT Jun 16, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
S wind 7 to 10 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.
Wednesday Night
SSW wind 7 to 9 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Thursday
W wind around 7 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Thursday Night
W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. A chance of showers before 8am. Seas 1 ft or less.
Friday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers between 8pm and 2am. Seas 1 ft or less.
Saturday
N wind around 6 kt becoming WNW in the afternoon. Partly sunny. Seas 1 ft or less.
Saturday Night
NW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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: 7:24 pm EDT Jun 9, 2026
Forecast Valid: 8pm EDT Jun 9, 2026-6pm EDT Jun 16, 2026
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