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

19°F

-7°C

Humidity 45%
Wind Speed NW 17 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 9 Feb 10:56 am EST
Extended Forecast for

Hauppauge NY

  • Today

    Today: Sunny, with a high near 27. Wind chill values between 10 and 20. Northwest wind 6 to 10 mph.

    High: 27 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. Light northwest wind.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 36. Wind chill values between 15 and 25. Calm wind becoming south around 6 mph in the afternoon.

    High: 36 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow, mixing with rain after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 27. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. West wind 6 to 11 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 27. Wind chill values between 10 and 20. Northwest wind 6 to 10 mph.
Tonight
Mostly cloudy, with a low around 16. Light northwest wind.
Tuesday
A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 36. Wind chill values between 15 and 25. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of snow, mixing with rain after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 27. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 37. West wind 6 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 20.
Saturday
Sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
Last Update:
1:31 am EST Feb 9, 2026
Forecast Valid:
11am EST Feb 9, 2026-6pm EST Feb 15, 2026
 
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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