Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

30°F

-1°C

Humidity 41%
Wind Speed N 9 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 5 Feb 3:56 pm EST
Extended Forecast for

Hauppauge NY

Extreme Cold Watch February 7, 06:00pm until February 8, 01:00pm
Click here for hazard details and duration
Extreme Cold Watch
  • Tonight

    Tonight: Increasing clouds, with a low around 16. Light north wind.

    Low: 16 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 28. Wind chill values between 15 and 25. North wind around 5 mph becoming calm  in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow, mainly after 1am.  Steady temperature around 24. Light and variable wind.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Snow likely, mainly before 1pm.  Cloudy, with a temperature falling to around 15 by 5pm. Wind chill values between -5 and 5. Blustery, with a northwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 45 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 23 °F

    Snow Likely
    and Blustery

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Windy, with a northwest wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 40 mph.

    Low: 3 °F

    Decreasing
    Clouds and
    Windy

  • Sunday

    Sunday: Sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 16. Light north wind.
Friday
Mostly cloudy, with a high near 28. Wind chill values between 15 and 25. North wind around 5 mph becoming calm in the afternoon.
Friday Night
Snow, mainly after 1am. Steady temperature around 24. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly before 1pm. Cloudy, with a temperature falling to around 15 by 5pm. Wind chill values between -5 and 5. Blustery, with a northwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Windy, with a northwest wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 40 mph.
Sunday
Sunny and cold, with a high near 17.
Sunday Night
Mostly clear, with a low around 7.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 36.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
1:09 pm EST Feb 5, 2026
4pm EST Feb 5, 2026-6pm EST Feb 12, 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