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.

A Few Clouds

34°F

1°C

Humidity 40%
Wind Speed NW 9 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 13 Feb 1:56 pm EST
Extended Forecast for

Holbrook NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 34. Northwest wind 5 to 9 mph.

    High: 34 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of snow showers after 4am. Mostly cloudy, with a low around 23. Light west wind.

    Low: 23 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 39. Wind chill values between 20 and 30. West wind 6 to 11 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 35. Calm wind becoming east around 5 mph.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 34. Northwest wind 5 to 9 mph.
Tonight
A 20 percent chance of snow showers after 4am. Mostly cloudy, with a low around 23. Light west wind.
Saturday
Mostly sunny, with a high near 39. Wind chill values between 20 and 30. West wind 6 to 11 mph.
Saturday Night
Mostly clear, with a low around 24. Calm wind.
Sunday
Partly sunny, with a high near 35. Calm wind becoming east around 5 mph.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Washington's Birthday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 42.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
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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:
1:16 pm EST Feb 13, 2026
Forecast Valid:
2pm EST Feb 13, 2026-6pm EST Feb 19, 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