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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 8 to 10 kt. Sunny. Seas 1 ft or less.

      WNW 10kt
      < 1ft

    • Tonight

      Tonight:NNW wind 7 to 12 kt. Mostly clear. Seas 1 ft or less.

      NNW 12kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑WSW 6kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      S 10kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of showers after 2pm.   Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 8 kt. Mostly cloudy. Seas 1 ft or less.

      S 8kt
      < 1ft

    • Thursday

      Thursday:S wind 8 to 11 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 24 kt. A chance of showers after 2pm.   Seas 1 ft or less.

      ⇑S 17kt
      < 1ft

    • Thursday Night

      Thursday Night:SSW wind 10 to 14 kt becoming WSW after midnight. Winds could gust as high as 21 kt. A chance of showers.   Seas 1 ft or less.

      SSW 14kt
      < 1ft

    • Juneteenth

      Juneteenth:W wind around 10 kt. A chance of showers.   Seas 1 ft or less.

      W 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 5:30 am EDT Jun 15, 2026
Forecast Valid: 7am EDT Jun 15, 2026-6pm EDT Jun 21, 2026

View Nearby Observations

Detailed Forecast


Today
WNW wind 8 to 10 kt. Sunny. Seas 1 ft or less.
Tonight
NNW wind 7 to 12 kt. Mostly clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
S wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of showers after 2pm. Seas 1 ft or less.
Wednesday Night
S wind 5 to 8 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
S wind 8 to 11 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 24 kt. A chance of showers after 2pm. Seas 1 ft or less.
Thursday Night
SSW wind 10 to 14 kt becoming WSW after midnight. Winds could gust as high as 21 kt. A chance of showers. Seas 1 ft or less.
Juneteenth
W wind around 10 kt. 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: 5:30 am EDT Jun 15, 2026
Forecast Valid: 7am EDT Jun 15, 2026-6pm EDT Jun 21, 2026
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