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

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:E wind 21 to 26 kt decreasing to 16 to 21 kt in the afternoon. Winds could gust as high as 32 kt. Rain. Seas 7 to 8 ft.

      E 26kt⇓
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:ENE wind 7 to 12 kt. Showers. Areas of fog after 2am. Seas 6 to 7 ft.

      ENE 12kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Memorial Day

      Memorial Day:SSE wind around 8 kt becoming SW in the afternoon. Showers and possibly a thunderstorm before 2pm, then a slight chance of showers. Areas of fog before 8am. Seas 4 to 5 ft.

      SSE 8kt
      4-5ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A slight chance of showers before 8pm. Seas around 4 ft.

      Light Wind
      4ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly cloudy. Seas 3 to 4 ft.

      Light Wind
      3-4ft

    • Tuesday Night

      Tuesday Night:SW wind around 8 kt. Mostly cloudy. Seas around 3 ft.

      SW 8kt
      3ft

    • Wednesday

      Wednesday:SW wind 6 to 9 kt increasing to 9 to 12 kt in the afternoon. Mostly cloudy. Seas around 3 ft.

      ⇑SW 12kt
      3ft

    • Wednesday Night

      Wednesday Night:WSW wind 8 to 11 kt becoming NW after midnight. Mostly cloudy. Seas around 3 ft.

      WSW 11kt
      3ft

    • Thursday

      Thursday:N wind 5 to 8 kt becoming WNW in the afternoon. Partly sunny. Seas 2 to 3 ft.

      WNW 8kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 5:24 am EDT May 24, 2026
Forecast Valid: 6am EDT May 24, 2026-6pm EDT May 30, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Today
E wind 21 to 26 kt decreasing to 16 to 21 kt in the afternoon. Winds could gust as high as 32 kt. Rain. Seas 7 to 8 ft.
Tonight
ENE wind 7 to 12 kt. Showers. Areas of fog after 2am. Seas 6 to 7 ft.
Memorial Day
SSE wind around 8 kt becoming SW in the afternoon. Showers and possibly a thunderstorm before 2pm, then a slight chance of showers. Areas of fog before 8am. Seas 4 to 5 ft.
Monday Night
Variable winds 5 kt or less. A slight chance of showers before 8pm. Seas around 4 ft.
Tuesday
Variable winds 5 kt or less. Mostly cloudy. Seas 3 to 4 ft.
Tuesday Night
SW wind around 8 kt. Mostly cloudy. Seas around 3 ft.
Wednesday
SW wind 6 to 9 kt increasing to 9 to 12 kt in the afternoon. Mostly cloudy. Seas around 3 ft.
Wednesday Night
WSW wind 8 to 11 kt becoming NW after midnight. Mostly cloudy. Seas around 3 ft.
Thursday
N wind 5 to 8 kt becoming WNW in the afternoon. Partly sunny. Seas 2 to 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: 5:24 am EDT May 24, 2026
Forecast Valid: 6am EDT May 24, 2026-6pm EDT May 30, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data