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18NM WSW Islip NY

[NOTICE]

Last Update: 2:20 pm EDT Sep 4, 2026
Forecast Valid: 5pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026

Tonight

NW wind 7 to 9 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.

Saturday

N wind around 8 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

NNE wind 6 to 9 kt becoming E after midnight. A chance of showers between 11pm and 2am. Seas 1 ft or less.

Sunday

NE wind 7 to 9 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

Variable winds less than 5 kt becoming NNW around 6 kt after midnight. Mostly clear. Seas 1 ft or less.

Labor Day

N wind 5 to 7 kt. Sunny. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Tuesday

WNW wind 5 to 8 kt becoming WSW in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 7 kt. Partly cloudy. Seas 1 ft or less.

*Notices:

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.
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.