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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds less than 5 kt becoming WSW around 6 kt in the evening. Clear. Seas 1 ft or less.

      ⇑WSW 6kt
      < 1ft

    • Monday

      Monday:W wind 5 to 7 kt. Sunny. Seas 1 ft or less.

      W 7kt
      < 1ft

    • Monday Night

      Monday Night:W wind 5 to 8 kt becoming N 8 to 11 kt after midnight. Mostly clear. Seas 1 ft or less.

      ⇑N 11kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind 9 to 12 kt decreasing to 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.

      NNE 12kt⇓
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds less than 5 kt becoming NE around 6 kt in the evening. Mostly clear. Seas 1 ft or less.

      ⇑NE 6kt
      < 1ft

    • Wednesday

      Wednesday:NE wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

      NE 7kt⇓
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑SW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:WSW wind around 7 kt. Mostly clear. Seas 1 ft or less.

      WSW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:19 pm EDT Oct 25, 2026
Forecast Valid: 8pm EDT Oct 25, 2026-6pm EST Nov 1, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds less than 5 kt becoming WSW around 6 kt in the evening. Clear. Seas 1 ft or less.
Monday
W wind 5 to 7 kt. Sunny. Seas 1 ft or less.
Monday Night
W wind 5 to 8 kt becoming N 8 to 11 kt after midnight. Mostly clear. Seas 1 ft or less.
Tuesday
NNE wind 9 to 12 kt decreasing to 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
Variable winds less than 5 kt becoming NE around 6 kt in the evening. Mostly clear. Seas 1 ft or less.
Wednesday
NE wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. Sunny. Seas 1 ft or less.
Thursday Night
WSW wind around 7 kt. Mostly clear. 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: 2:19 pm EDT Oct 25, 2026
Forecast Valid: 8pm EDT Oct 25, 2026-6pm EST Nov 1, 2026
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