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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

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

      Light Wind
      < 1ft

    • Tonight

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

      Light Wind
      < 1ft

    • Sunday

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

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming W around 6 kt after midnight. Clear. Seas 1 ft or less.

      ⇑W 6kt
      < 1ft

    • Monday

      Monday:W wind around 6 kt. Sunny. Seas around 1 ft.

      W 6kt
      1ft

    • Monday Night

      Monday Night:Variable winds less than 5 kt becoming N 8 to 13 kt in the evening. Clear. Seas 1 ft or less building to 2 ft.

      ⇑N 13kt
      Waves Building2ft

    • Tuesday

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

      NNE 12kt⇓
      1ft

    • Tuesday Night

      Tuesday Night:NE wind around 6 kt. Mostly clear. Seas around 1 ft.

      NE 6kt
      1ft

    • Wednesday

      Wednesday:NE wind 5 to 7 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

      NE 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:37 am EDT Oct 24, 2026
Forecast Valid: 10am EDT Oct 24, 2026-6pm EDT Oct 30, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Sunday Night
Variable winds less than 5 kt becoming W around 6 kt after midnight. Clear. Seas 1 ft or less.
Monday
W wind around 6 kt. Sunny. Seas around 1 ft.
Monday Night
Variable winds less than 5 kt becoming N 8 to 13 kt in the evening. Clear. Seas 1 ft or less building to 2 ft.
Tuesday
NNE wind 9 to 12 kt decreasing to 5 to 8 kt in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
NE wind around 6 kt. Mostly clear. Seas around 1 ft.
Wednesday
NE wind 5 to 7 kt becoming E in the afternoon. Mostly sunny. 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: 2:37 am EDT Oct 24, 2026
Forecast Valid: 10am EDT Oct 24, 2026-6pm EDT Oct 30, 2026
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