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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNW wind around 8 kt. Showers likely and possibly a thunderstorm before 2pm, then rain and possibly a thunderstorm between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall.   Seas around 1 ft.

      NNW 8kt
      1ft

    • Tonight

      Tonight:Variable winds less than 5 kt becoming NNW 5 to 9 kt in the evening. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 11pm.   Seas around 1 ft.

      ⇑NNW 9kt
      1ft

    • Wednesday

      Wednesday:NW wind 6 to 8 kt. Sunny. Seas around 1 ft.

      NW 8kt
      1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 6kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind 8 to 10 kt. A chance of showers and thunderstorms after 2am.   Seas around 1 ft.

      S 10kt
      1ft

    • Friday

      Friday:SSW wind around 6 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.   Seas around 1 ft.

      SSW 6kt
      1ft

    • Friday Night

      Friday Night:S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms, then showers likely after 8pm.   Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Showers likely, with thunderstorms also possible after 2pm.   Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:07 am EDT Jun 23, 2026
Forecast Valid: 1pm EDT Jun 23, 2026-6pm EDT Jun 29, 2026

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Detailed Forecast


This Afternoon
NNW wind around 8 kt. Showers likely and possibly a thunderstorm before 2pm, then rain and possibly a thunderstorm between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Seas around 1 ft.
Tonight
Variable winds less than 5 kt becoming NNW 5 to 9 kt in the evening. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 11pm. Seas around 1 ft.
Wednesday
NW wind 6 to 8 kt. Sunny. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Thursday Night
S wind 8 to 10 kt. A chance of showers and thunderstorms after 2am. Seas around 1 ft.
Friday
SSW wind around 6 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Seas around 1 ft.
Friday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms, then showers likely after 8pm. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Showers likely, with thunderstorms also possible after 2pm. 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: 7:07 am EDT Jun 23, 2026
Forecast Valid: 1pm EDT Jun 23, 2026-6pm EDT Jun 29, 2026
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