For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 4:45 pm EDT Jul 11, 2025
Forecast Valid: 10pm EDT Jul 11, 2025-6pm EDT Jul 18, 2025

Tonight

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

Saturday

Variable winds less than 5 kt becoming ESE 5 to 9 kt in the morning. Mostly sunny. Seas 1 ft or less.

Saturday Night

ESE wind 5 to 8 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

E wind 5 to 9 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

S wind 5 to 8 kt. Mostly cloudy. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

SSW wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers before 8pm. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SW wind 5 to 9 kt. Partly cloudy. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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.