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

For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:WNW wind around 6 kt. Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then a chance of showers after 2pm. Seas around 3 ft.

      WNW 6kt
      3ft

    • Tonight

      Tonight:WNW wind around 10 kt. A slight chance of showers before 5am. Seas around 3 ft.

      WNW 10kt
      3ft

    • Friday

      Friday:WNW wind 7 to 10 kt becoming W in the afternoon. A slight chance of showers between 8am and 11am. Seas around 4 ft.

      WNW 10kt
      4ft

    • Friday Night

      Friday Night:NW wind 5 to 7 kt becoming SW after midnight. Partly cloudy. Seas around 4 ft.

      W 7kt
      4ft

    • Saturday

      Saturday:WSW wind 6 to 9 kt becoming S 11 to 16 kt in the afternoon. Sunny. Seas 3 to 4 ft.

      ⇑S 16kt
      3-4ft

    • Saturday Night

      Saturday Night:SSW wind 15 to 18 kt decreasing to 10 to 13 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

      SSW 18kt⇓
      4-5ft

    • Sunday

      Sunday:SW wind 9 to 12 kt. Mostly sunny. Seas 3 to 4 ft.

      SW 12kt
      3-4ft

    • Sunday Night

      Sunday Night:WSW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 3 to 4 ft.

      WSW 8kt⇓
      3-4ft

    • Monday

      Monday:Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Mostly sunny. Seas around 3 ft.

      ⇑ESE 10kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 6:45 am EDT May 14, 2026
Forecast Valid: 10am EDT May 14, 2026-6pm EDT May 20, 2026

View Nearby Observations

Detailed Forecast


Today
WNW wind around 6 kt. Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then a chance of showers after 2pm. Seas around 3 ft.
Tonight
WNW wind around 10 kt. A slight chance of showers before 5am. Seas around 3 ft.
Friday
WNW wind 7 to 10 kt becoming W in the afternoon. A slight chance of showers between 8am and 11am. Seas around 4 ft.
Friday Night
NW wind 5 to 7 kt becoming SW after midnight. Partly cloudy. Seas around 4 ft.
Saturday
WSW wind 6 to 9 kt becoming S 11 to 16 kt in the afternoon. Sunny. Seas 3 to 4 ft.
Saturday Night
SSW wind 15 to 18 kt decreasing to 10 to 13 kt after midnight. Partly cloudy. Seas 4 to 5 ft.
Sunday
SW wind 9 to 12 kt. Mostly sunny. Seas 3 to 4 ft.
Sunday Night
WSW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 3 to 4 ft.
Monday
Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Mostly sunny. Seas around 3 ft.

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: 40.53°N 73.44°W
Last Update: 6:45 am EDT May 14, 2026
Forecast Valid: 10am EDT May 14, 2026-6pm EDT May 20, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data