Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

63°F

17°C

Humidity 90%
Wind Speed Calm
Barometer 30.10 in (1019.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 30 Sep 4:56 am EDT
Extended Forecast for

Sayville NY

  • Today

    Today: Mostly cloudy, with a high near 79. Light north wind becoming northeast 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67. North wind 15 to 17 mph, with gusts as high as 28 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Northeast wind around 13 mph, with gusts as high as 23 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Northeast wind 10 to 14 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 79. Light north wind becoming northeast 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 67. North wind 15 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 51. Northeast wind around 13 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 65. Northeast wind 10 to 14 mph.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
2:04 am EDT Sep 30, 2025
5am EDT Sep 30, 2025-6pm EDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database