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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds and Breezy

32°F

0°C

Humidity 50%
Wind Speed NW 23 G 32 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 12 Feb 11:56 am EST
Extended Forecast for

Holbrook NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 34. Wind chill values between 25 and 30. Northwest wind 9 to 11 mph, with gusts as high as 24 mph.

    High: 34 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Wind chill values between 10 and 15. Northwest wind around 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 33. Wind chill values between 10 and 20. Northwest wind around 7 mph.

    High: 33 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow showers after 1am. Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.

    Low: 23 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 39. West wind 6 to 9 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 34. Wind chill values between 25 and 30. Northwest wind 9 to 11 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 19. Wind chill values between 10 and 15. Northwest wind around 6 mph.
Friday
Sunny, with a high near 33. Wind chill values between 10 and 20. Northwest wind around 7 mph.
Friday Night
A 30 percent chance of snow showers after 1am. Partly cloudy, with a low around 23. Calm wind becoming west around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 39. West wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 36.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27.
Washington's Birthday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Holbrook NY
 40.8°N 73.09°W (Elev. 98 ft)
Last Update:
12:45 pm EST Feb 12, 2026
Forecast Valid:
1pm EST Feb 12, 2026-6pm EST Feb 18, 2026
 
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Additional Resources

Radar & Satellite Image

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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