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]

    • Late Afternoon

      Late Afternoon:SSW wind around 11 kt. Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Tonight

      Tonight:WNW wind 6 to 9 kt becoming NNW after midnight. A chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

      WNW 9kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Patchy fog before 8am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

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

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 7kt
      < 1ft

    • Thursday

      Thursday:SSW wind 5 to 8 kt. Mostly sunny. Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 6 to 9 kt. A chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Friday

      Friday:SW wind around 7 kt. A chance of showers. Seas 1 ft or less.

      SW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 4:32 pm EDT Aug 3, 2026
Forecast Valid: 4pm EDT Aug 3, 2026-6pm EDT Aug 10, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
SSW wind around 11 kt. Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.
Tonight
WNW wind 6 to 9 kt becoming NNW after midnight. A chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Patchy fog before 8am. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Wednesday Night
SSW wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SSW wind 5 to 8 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
SW wind 6 to 9 kt. A chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.
Friday
SW wind around 7 kt. A chance of showers. 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: 4:32 pm EDT Aug 3, 2026
Forecast Valid: 4pm EDT Aug 3, 2026-6pm EDT Aug 10, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data