Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

For More Weather Information:

New York, NY Local Forecast Office

7NM ESE Islip NY

Marine Point Forecast

[NOTICE]

Today
SSW 15kt
1ft
Tonight
SSW 14kt⇓
1ft
Friday
W 9kt
1ft
Friday Night
W 6kt
< 1ft
Saturday
NNE 8kt
< 1ft
Saturday Night
Light Wind
< 1ft
Sunday
NE 8kt
< 1ft
Sunday Night
SSE 6kt⇓
< 1ft
Monday
⇑S 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:53 pm EDT Jul 8, 2026
Forecast Valid: 8am EDT Jul 9, 2026-6pm EDT Jul 15, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 11 to 15 kt. Mostly sunny. Seas around 1 ft.

Tonight

SSW wind 11 to 14 kt decreasing to 7 to 10 kt after midnight. A chance of showers and thunderstorms, mainly between 11pm and 2am. Seas around 1 ft.

Friday

W wind around 9 kt. A chance of showers and thunderstorms after 2pm. Seas around 1 ft.

Friday Night

W wind around 6 kt becoming NW after midnight. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas 1 ft or less.

Saturday

N wind 6 to 8 kt becoming NE in the afternoon. Partly sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

NE wind 6 to 8 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

Winds and waves 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.