Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSW wind 8 to 11 kt. Sunny. Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Tonight

      Tonight:SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms before 2am.   Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Thursday

      Thursday:SW wind 5 to 8 kt. Sunny. Seas 1 ft or less.

      SW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:SSW wind 5 to 10 kt becoming W after midnight. Clear. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Friday

      Friday:W wind 5 to 7 kt. A slight chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      W 7kt
      < 1ft

    • Friday Night

      Friday Night:W wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      W 7kt⇓
      < 1ft

    • Independence Day

      Independence Day:Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. A chance of showers after 2pm.   Seas 1 ft or less.

      ⇑WSW 6kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers.   Seas 1 ft or less.

      WSW 6kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SW around 6 kt in the morning. A chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      ⇑SW 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:37 am EDT Jul 1, 2026
Forecast Valid: 12pm EDT Jul 1, 2026-6pm EDT Jul 7, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSW wind 8 to 11 kt. Sunny. Seas 1 ft or less.
Tonight
SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms before 2am. Seas 1 ft or less.
Thursday
SW wind 5 to 8 kt. Sunny. Seas 1 ft or less.
Thursday Night
SSW wind 5 to 10 kt becoming W after midnight. Clear. Seas 1 ft or less.
Friday
W wind 5 to 7 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Friday Night
W wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Independence Day
Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. A chance of showers after 2pm. Seas 1 ft or less.
Saturday Night
WSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SW around 6 kt in the morning. A chance of showers and thunderstorms after 2pm. 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...

ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 2:37 am EDT Jul 1, 2026
Forecast Valid: 12pm EDT Jul 1, 2026-6pm EDT Jul 7, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data