For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:WNW wind 9 to 14 kt becoming W in the afternoon. Winds could gust as high as 20 kt. Increasing clouds. Seas 1 ft or less.

      WNW 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:W wind 11 to 13 kt becoming NW after midnight. A slight chance of flurries before 4am.   Seas 1 ft or less.

      W 13kt
      < 1ft

    • Thursday

      Thursday:WNW wind around 13 kt. Sunny. Seas 1 ft or less.

      WNW 13kt
      < 1ft

    • Thursday Night

      Thursday Night:WNW wind around 14 kt. Mostly clear. Seas 1 ft or less.

      WNW 14kt
      < 1ft

    • Friday

      Friday:WNW wind around 14 kt. Sunny. Seas 1 ft or less.

      WNW 14kt
      < 1ft

    • Friday Night

      Friday Night:NW wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.

      NW 13kt
      < 1ft

    • Saturday

      Saturday:N wind 8 to 10 kt. Partly sunny. Seas 1 ft or less.

      N 10kt
      < 1ft

    • Saturday Night

      Saturday Night:NNE wind 12 to 15 kt increasing to 18 to 21 kt after midnight. A chance of snow.   Seas 1 ft or less.

      ⇑NNE 21kt
      < 1ft

    • Sunday

      Sunday:N wind 20 to 22 kt, with gusts as high as 28 kt. A chance of snow.   Seas 1 ft or less.

      N 22kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:25 am EST Jan 28, 2026
Forecast Valid: 2am EST Jan 28, 2026-6pm EST Feb 3, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

Wednesday
WNW wind 9 to 14 kt becoming W in the afternoon. Winds could gust as high as 20 kt. Increasing clouds. Seas 1 ft or less.
Wednesday Night
W wind 11 to 13 kt becoming NW after midnight. A slight chance of flurries before 4am. Seas 1 ft or less.
Thursday
WNW wind around 13 kt. Sunny. Seas 1 ft or less.
Thursday Night
WNW wind around 14 kt. Mostly clear. Seas 1 ft or less.
Friday
WNW wind around 14 kt. Sunny. Seas 1 ft or less.
Friday Night
NW wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.
Saturday
N wind 8 to 10 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
NNE wind 12 to 15 kt increasing to 18 to 21 kt after midnight. A chance of snow. Seas 1 ft or less.
Sunday
N wind 20 to 22 kt, with gusts as high as 28 kt. A chance of snow. 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...

ABOUT THIS FORECAST

Point Forecast: 40.62°N 73.59°W
Last Update: 1:25 am EST Jan 28, 2026
Forecast Valid: 2am EST Jan 28, 2026-6pm EST Feb 3, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data