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18NM WSW Islip NY

[NOTICE]

Last Update: 1:20 pm EDT Jul 23, 2026
Forecast Valid: 1pm EDT Jul 23, 2026-6pm EDT Jul 29, 2026

This Afternoon

NNE wind around 6 kt becoming SSE. Sunny. Seas 1 ft or less.

Tonight

SSE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming ESE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

ESE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Saturday

NE wind 7 to 12 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

ESE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Sunday

NNE wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Mostly sunny. 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.