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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:S wind 8 to 10 kt. Showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Friday

      Friday:S wind around 7 kt becoming SW in the afternoon. A chance of showers and thunderstorms before 11am, then a slight chance of showers after 5pm. Seas 1 ft or less.

      SW 7kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly after 5am. Seas 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Showers. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Showers likely, mainly before 8pm. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

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

      Light Wind
      < 1ft

    • Sunday Night

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

      Light Wind
      < 1ft

    • Monday

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

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:S wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      S 6kt⇓
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:19 pm EDT Jun 25, 2026
Forecast Valid: 4pm EDT Jun 25, 2026-6pm EDT Jul 2, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind 8 to 10 kt. Showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.
Friday
S wind around 7 kt becoming SW in the afternoon. A chance of showers and thunderstorms before 11am, then a slight chance of showers after 5pm. Seas 1 ft or less.
Friday Night
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly after 5am. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Showers. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Showers likely, mainly before 8pm. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Monday Night
S wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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 Jun 25, 2026
Forecast Valid: 4pm EDT Jun 25, 2026-6pm EDT Jul 2, 2026
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