



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 >
Hazardous Weather Conditions
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
High: 79 °F
Mostly Cloudy
Tonight
Low: 55 °F
Partly Cloudy
Wednesday
High: 67 °F
Sunny
Wednesday Night
Low: 51 °F
Mostly Clear
Thursday
High: 65 °F
Sunny
Thursday Night
Low: 52 °F
Partly Cloudy
Friday
High: 69 °F
Mostly Sunny
Friday Night
Low: 56 °F
Mostly Clear
Saturday
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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sayville NY
40.74°N 73.1°W (Elev. 30 ft)
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