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.

Partly Cloudy

17°F

-8°C

Humidity 54%
Wind Speed N 14 mph
Barometer 30.12 in (1020.2 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 31 Jan 11:56 am EST
Extended Forecast for

Holbrook NY

Cold Weather Advisory January 31, 12:28pm until February 1, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 31, 12:28pm until February 1, 10:00am

    NOW until 10:00am Sun

    Cold Weather Advisory

  • This Afternoon

    High: 22 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. Wind chill values between -5 and 5. North wind 7 to 16 mph.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 24. Wind chill values between -5 and 5. Blustery, with a north wind 17 to 23 mph, with gusts as high as 33 mph.

    High: 24 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14. Wind chill values between zero and 10. Northwest wind 11 to 16 mph.

    Low: 14 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30. Northwest wind 9 to 11 mph.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 15.

    Low: 15 °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, with a high near 22. Wind chill values between 5 and 15. North wind around 8 mph.
Tonight
Mostly cloudy, with a low around 12. Wind chill values between -5 and 5. North wind 7 to 16 mph.
Sunday
Mostly cloudy, with a high near 24. Wind chill values between -5 and 5. Blustery, with a north wind 17 to 23 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 11 to 16 mph.
Monday
Mostly sunny, with a high near 30. Northwest wind 9 to 11 mph.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Holbrook NY
 40.8°N 73.09°W (Elev. 98 ft)
Last Update:
2:07 am EST Jan 31, 2026
Forecast Valid:
12pm EST Jan 31, 2026-6pm EST Feb 6, 2026
 
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