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

19°F

-7°C

Humidity 52%
Wind Speed N 12 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 31 Jan 12:56 pm EST
Extended Forecast for

Centereach NY

Cold Weather Advisory January 31, 01:28pm until February 1, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 31, 01:28pm until February 1, 10:00am

    NOW until 10:00am Sun

    Cold Weather Advisory

  • This Afternoon

    High: 20 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around 11. Wind chill values between -5 and 5. North wind 5 to 14 mph, with gusts as high as 26 mph.

    Low: 11 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 24. Wind chill values between -5 and 5. North wind 14 to 17 mph, with gusts as high as 33 mph.

    High: 24 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14. Wind chill values between zero and 10. Northwest wind 9 to 11 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny and cold, with a high near 20. Wind chill values between 10 and 15. North wind around 6 mph.
Tonight
Mostly cloudy, with a low around 11. Wind chill values between -5 and 5. North wind 5 to 14 mph, with gusts as high as 26 mph.
Sunday
Mostly cloudy, with a high near 24. Wind chill values between -5 and 5. North wind 14 to 17 mph, with gusts as high as 33 mph.
Sunday Night
Mostly cloudy, with a low around 14. Wind chill values between zero and 10. Northwest wind 9 to 11 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 30. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Mostly clear, with a low around 13.
Friday
Partly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
Last Update:
1:05 pm EST Jan 31, 2026
Forecast Valid:
1pm EST Jan 31, 2026-6pm EST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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