National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

68°F

20°C

Humidity 76%
Wind Speed E 9 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 20 Aug 7:56 am EDT
Extended Forecast for

Saltaire NY

Coastal Flood Watch August 21, 06:00pm until August 22, 12:00am
High Surf Advisory until August 22, 08:00pm
Click here for hazard details and duration
Coastal Flood Watch
High Surf Advisory
  •  
    High Surf Advisory until August 22, 08:00pm

    NOW until 8:00pm Fri

    High Surf Advisory

  • Today

    High: 73 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then showers likely. Steady temperature around 70. Breezy, with an east wind 20 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 71. Windy, with a northeast wind 25 to 28 mph.

    High: 71 °F

    Chance
    Showers and
    Windy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65. Windy, with a north wind around 30 mph.

    Low: 65 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 76. Breezy, with a north wind 15 to 24 mph.

    High: 76 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 73. East wind 15 to 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 11pm, then showers likely. Steady temperature around 70. Breezy, with an east wind 20 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 71. Windy, with a northeast wind 25 to 28 mph.
Thursday Night
Mostly cloudy, with a low around 65. Windy, with a north wind around 30 mph.
Friday
Mostly sunny, with a high near 76. Breezy, with a north wind 15 to 24 mph.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 71.
Sunday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 74.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Monday
Showers likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Tuesday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saltaire NY
 40.64°N 73.21°W (Elev. 0 ft)
Last Update:
2:48 am EDT Aug 20, 2025
Forecast Valid:
8am EDT Aug 20, 2025-6pm EDT Aug 26, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation