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

33°F

1°C

Humidity 40%
Wind Speed W 12 mph
Barometer 29.76 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 31 Dec 4:56 pm EST
Extended Forecast for

Hauppauge NY

  • Tonight

    Tonight: Light snow, mainly between 10pm and 4am. Steady temperature around 31. Wind chill values between 20 and 25. Southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Light
    Snow then
    Light Snow

  • New Year's Day

    New Year's Day: A 50 percent chance of snow showers before 10am. Mostly sunny, with a temperature falling to around 23 by 5pm. Wind chill values between 10 and 20. Northwest wind 14 to 18 mph, with gusts as high as 32 mph.

    High: 32 °F⇓

    Chance Snow
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. Wind chill values between 10 and 15. West wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30. Wind chill values between 10 and 20. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 30 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21. West wind around 6 mph.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 32.

    High: 32 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Cloudy, with a low around 23.

    Low: 23 °F

    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Light snow, mainly between 10pm and 4am. Steady temperature around 31. Wind chill values between 20 and 25. Southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
New Year's Day
A 50 percent chance of snow showers before 10am. Mostly sunny, with a temperature falling to around 23 by 5pm. Wind chill values between 10 and 20. Northwest wind 14 to 18 mph, with gusts as high as 32 mph.
Thursday Night
Partly cloudy, with a low around 17. Wind chill values between 10 and 15. West wind 7 to 10 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 30. Wind chill values between 10 and 20. West wind 7 to 11 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 21. West wind around 6 mph.
Saturday
Increasing clouds, with a high near 32.
Saturday Night
Cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 19.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
Last Update:
1:50 pm EST Dec 31, 2025
Forecast Valid:
5pm EST Dec 31, 2025-6pm EST Jan 7, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation