For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 3:57 am EDT Jul 12, 2025
Forecast Valid: 6am EDT Jul 12, 2025-6pm EDT Jul 18, 2025

Today

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

Tonight

ESE wind around 7 kt. Patchy fog after 3am. Seas 1 ft or less.

Sunday

E wind 7 to 9 kt becoming SE in the afternoon. Partly sunny. Seas 1 ft or less.

Sunday Night

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

Monday

S wind 5 to 8 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Monday Night

S wind around 6 kt becoming variable and less than 5 kt after midnight. Patchy fog after 2am. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Patchy fog before 8am. Seas 1 ft or less.

Tuesday Night

S wind 5 to 8 kt becoming SW after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

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