National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind around 6 kt. A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.

      SSW 6kt
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then a slight chance of showers after 5pm. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:NW wind around 6 kt becoming W in the evening. A slight chance of showers before 8pm. Seas 1 ft or less.

      NW 6kt
      < 1ft

    • Friday

      Friday:N wind 6 to 9 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.

      WNW 9kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds less than 5 kt becoming NNE 5 to 7 kt after midnight. Partly cloudy. Seas 1 ft or less.

      ⇑NNE 7kt
      < 1ft

    • Saturday

      Saturday:NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

      NNE 8kt⇓
      < 1ft

    • Saturday Night

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

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. A chance of showers. Seas 1 ft or less.

      ⇑S 10kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind around 12 kt. Showers likely. Seas 1 ft or less.

      SSW 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 9:00 pm EDT Aug 12, 2026
Forecast Valid: 10pm EDT Aug 12, 2026-6pm EDT Aug 19, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind around 6 kt. A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then a slight chance of showers after 5pm. Seas 1 ft or less.
Thursday Night
NW wind around 6 kt becoming W in the evening. A slight chance of showers before 8pm. Seas 1 ft or less.
Friday
N wind 6 to 9 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.
Friday Night
Variable winds less than 5 kt becoming NNE 5 to 7 kt after midnight. Partly cloudy. Seas 1 ft or less.
Saturday
NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. A chance of showers. Seas 1 ft or less.
Sunday Night
SSW wind around 12 kt. Showers likely. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 9:00 pm EDT Aug 12, 2026
Forecast Valid: 10pm EDT Aug 12, 2026-6pm EDT Aug 19, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data