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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:SSW wind 7 to 12 kt. Sunny. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Tonight

      Tonight:SSW wind 10 to 13 kt decreasing to 5 to 8 kt after midnight. Increasing clouds. Seas 1 ft or less.

      SSW 13kt⇓
      < 1ft

    • Wednesday

      Wednesday:S wind 6 to 10 kt. A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 8 kt becoming SW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.

      S 8kt
      < 1ft

    • Thursday

      Thursday:WSW wind around 7 kt. Showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      WSW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind around 6 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

      W 6kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 6kt
      < 1ft

    • Friday Night

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

      S 6kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:26 am EDT Jun 9, 2026
Forecast Valid: 7am EDT Jun 9, 2026-6pm EDT Jun 15, 2026

View Nearby Observations

Detailed Forecast


Today
SSW wind 7 to 12 kt. Sunny. Seas 1 ft or less.
Tonight
SSW wind 10 to 13 kt decreasing to 5 to 8 kt after midnight. Increasing clouds. Seas 1 ft or less.
Wednesday
S wind 6 to 10 kt. A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Seas 1 ft or less.
Wednesday Night
S wind 5 to 8 kt becoming SW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.
Thursday
WSW wind around 7 kt. Showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
W wind around 6 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Friday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Mostly sunny. 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.
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ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 3:26 am EDT Jun 9, 2026
Forecast Valid: 7am EDT Jun 9, 2026-6pm EDT Jun 15, 2026
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