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

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Saturday

      Saturday:NNE wind 29 to 34 kt, with gusts as high as 40 kt. Rain and possibly a thunderstorm before noon, then rain between noon and 2pm, then rain and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      NNE 34kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind 26 to 29 kt, with gusts as high as 40 kt. Rain, with thunderstorms also possible after 2am. Seas 1 ft or less.

      N 29kt
      < 1ft

    • Sunday

      Sunday:NNE wind 24 to 27 kt becoming ENE 20 to 23 kt in the afternoon. Winds could gust as high as 36 kt. Showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.

      NNE 27kt⇓
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 18 to 22 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      ENE 22kt
      < 1ft

    • Monday

      Monday:NE wind 12 to 15 kt becoming NNW in the afternoon. Showers likely, mainly before 2pm. Seas 1 ft or less.

      NE 15kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 8 to 10 kt. A chance of showers before 8pm. Seas 1 ft or less.

      NW 10kt
      < 1ft

    • Tuesday

      Tuesday:NW wind around 7 kt becoming W in the afternoon. Partly sunny. Seas 1 ft or less.

      NW 7kt
      < 1ft

    • Tuesday Night

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

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:52 am EDT Sep 26, 2026
Forecast Valid: 3am EDT Sep 26, 2026-6pm EDT Oct 2, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

Saturday
NNE wind 29 to 34 kt, with gusts as high as 40 kt. Rain and possibly a thunderstorm before noon, then rain between noon and 2pm, then rain and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Saturday Night
N wind 26 to 29 kt, with gusts as high as 40 kt. Rain, with thunderstorms also possible after 2am. Seas 1 ft or less.
Sunday
NNE wind 24 to 27 kt becoming ENE 20 to 23 kt in the afternoon. Winds could gust as high as 36 kt. Showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.
Sunday Night
ENE wind 18 to 22 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday
NE wind 12 to 15 kt becoming NNW in the afternoon. Showers likely, mainly before 2pm. Seas 1 ft or less.
Monday Night
NW wind 8 to 10 kt. A chance of showers before 8pm. Seas 1 ft or less.
Tuesday
NW wind around 7 kt becoming W in the afternoon. Partly sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 7 kt 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 40.62°N 73.59°W
Last Update: 2:52 am EDT Sep 26, 2026
Forecast Valid: 3am EDT Sep 26, 2026-6pm EDT Oct 2, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data