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Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Tuesday

      Tuesday:SSW wind 6 to 8 kt becoming NNW in the afternoon. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:N wind around 9 kt. Showers likely, mainly before 8pm. Seas 1 ft or less.

      N 9kt
      < 1ft

    • Wednesday

      Wednesday:NNW wind 5 to 7 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.

      NNW 7kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      SW 9kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑S 10kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind 9 to 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Friday

      Friday:S wind 7 to 10 kt. Showers likely and possibly a thunderstorm before 8am, then a chance of showers. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers. Seas 1 ft or less.

      SSW 7kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers. Seas 1 ft or less.

      ⇑S 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:23 pm EDT Jun 22, 2026
Forecast Valid: 2am EDT Jun 23, 2026-6pm EDT Jun 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT TUESDAY...

Tuesday
SSW wind 6 to 8 kt becoming NNW in the afternoon. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Tuesday Night
N wind around 9 kt. Showers likely, mainly before 8pm. Seas 1 ft or less.
Wednesday
NNW wind 5 to 7 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
SW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.
Thursday Night
S wind 9 to 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Friday
S wind 7 to 10 kt. Showers likely and possibly a thunderstorm before 8am, then a chance of showers. Seas 1 ft or less.
Friday Night
SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers. 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.
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ABOUT THIS FORECAST

Point Forecast: 40.62°N 73.59°W
Last Update: 8:23 pm EDT Jun 22, 2026
Forecast Valid: 2am EDT Jun 23, 2026-6pm EDT Jun 29, 2026
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