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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WSW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft

    • Tonight

      Tonight:SW wind 11 to 13 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms after 11pm.   Seas 1 ft or less.

      SW 13kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 9 to 11 kt. A slight chance of showers and thunderstorms before 8pm.   Seas 1 ft or less.

      SW 11kt
      < 1ft

    • Thursday

      Thursday:WSW wind 6 to 8 kt. Sunny. Seas 1 ft or less.

      WSW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:SSW wind 6 to 9 kt becoming W after midnight. Clear. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Friday

      Friday:W wind 5 to 7 kt. A chance of showers after 2pm.   Seas 1 ft or less.

      W 7kt
      < 1ft

    • Friday Night

      Friday Night:WSW wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers.   Seas 1 ft or less.

      WSW 6kt⇓
      < 1ft

    • Independence Day

      Independence Day:Variable winds less than 5 kt becoming WSW 5 to 7 kt in the afternoon. A chance of showers.   Seas 1 ft or less.

      ⇑WSW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:08 am EDT Jun 30, 2026
Forecast Valid: 11am EDT Jun 30, 2026-6pm EDT Jul 6, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON

Today
WSW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Tonight
SW wind 11 to 13 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms after 11pm. Seas 1 ft or less.
Wednesday
SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Wednesday Night
SW wind 9 to 11 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
Thursday
WSW wind 6 to 8 kt. Sunny. Seas 1 ft or less.
Thursday Night
SSW wind 6 to 9 kt becoming W after midnight. Clear. Seas 1 ft or less.
Friday
W wind 5 to 7 kt. A chance of showers after 2pm. Seas 1 ft or less.
Friday Night
WSW wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers. Seas 1 ft or less.
Independence Day
Variable winds less than 5 kt becoming WSW 5 to 7 kt in the afternoon. A chance of showers. 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: 7:08 am EDT Jun 30, 2026
Forecast Valid: 11am EDT Jun 30, 2026-6pm EDT Jul 6, 2026
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