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:Variable winds less than 5 kt becoming N 5 to 10 kt in the evening. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

      ⇑N 10kt
      < 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 SW 5 to 8 kt in the morning. A slight chance of showers after 2pm. Seas 1 ft or less.

      ⇑SW 8kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 7 to 9 kt becoming W after midnight. A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Monday

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

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers after 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S around 6 kt in the morning. A chance of showers. Seas 1 ft or less.

      ⇑S 6kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind around 6 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      S 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:11 pm EDT Aug 28, 2026
Forecast Valid: 7pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds less than 5 kt becoming N 5 to 10 kt in the evening. A slight chance of showers and thunderstorms before 8pm. 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 SW 5 to 8 kt in the morning. A slight chance of showers after 2pm. Seas 1 ft or less.
Sunday Night
SSW wind 7 to 9 kt becoming W after midnight. A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of showers after 2am. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming S around 6 kt in the morning. A chance of showers. Seas 1 ft or less.
Tuesday Night
S wind around 6 kt. A chance of showers and thunderstorms. 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: 2:11 pm EDT Aug 28, 2026
Forecast Valid: 7pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data