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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. A chance of showers.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:SSW wind 5 to 8 kt. Partly cloudy. Seas around 1 ft.

      SSW 8kt
      1ft

    • Tuesday

      Tuesday:SW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly sunny. Seas around 1 ft.

      ⇑SW 11kt
      1ft

    • Tuesday Night

      Tuesday Night:SW wind 10 to 12 kt. Partly cloudy. Seas around 1 ft.

      SW 12kt
      1ft

    • Wednesday

      Wednesday:WSW wind around 9 kt. Mostly sunny. Seas around 1 ft.

      WSW 9kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:33 pm EDT Jun 27, 2026
Forecast Valid: 3pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.
Monday Night
SSW wind 5 to 8 kt. Partly cloudy. Seas around 1 ft.
Tuesday
SW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly sunny. Seas around 1 ft.
Tuesday Night
SW wind 10 to 12 kt. Partly cloudy. Seas around 1 ft.
Wednesday
WSW wind around 9 kt. Mostly sunny. Seas around 1 ft.

*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: 2:33 pm EDT Jun 27, 2026
Forecast Valid: 3pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026
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