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.

Mostly Cloudy

56°F

13°C

Humidity 93%
Wind Speed W 7 mph
Barometer 29.68 in (1005.0 mb)
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Last update 26 Nov 9:56 pm EST
Extended Forecast for

Hauppauge NY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 13 to 17 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 44. West wind 13 to 17 mph, with gusts as high as 34 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Wind chill values between 20 and 25. West wind around 14 mph, with gusts as high as 31 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 43. Wind chill values between 20 and 30. Breezy, with a west wind 15 to 21 mph, with gusts as high as 43 mph.

    High: 43 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. West wind 10 to 18 mph, with gusts as high as 36 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 31.

    Low: 31 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Cloudy, with a high near 52.

    High: 52 °F

    Cloudy then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 13 to 17 mph, with gusts as high as 30 mph.
Thanksgiving Day
Mostly sunny, with a high near 44. West wind 13 to 17 mph, with gusts as high as 34 mph.
Thursday Night
Mostly clear, with a low around 29. Wind chill values between 20 and 25. West wind around 14 mph, with gusts as high as 31 mph.
Friday
Mostly sunny, with a high near 43. Wind chill values between 20 and 30. Breezy, with a west wind 15 to 21 mph, with gusts as high as 43 mph.
Friday Night
Mostly clear, with a low around 30. West wind 10 to 18 mph, with gusts as high as 36 mph.
Saturday
Sunny, with a high near 42.
Saturday Night
Increasing clouds, with a low around 31.
Sunday
A 30 percent chance of showers after 1pm. Cloudy, with a high near 52.
Sunday Night
A 50 percent chance of showers. Cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 46.
Monday Night
A 30 percent chance of light snow. Mostly cloudy, with a low around 30.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Wednesday
A 30 percent chance of light snow. Partly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
Last Update:
10:07 pm EST Nov 26, 2025
Forecast Valid:
10pm EST Nov 26, 2025-6pm EST Dec 3, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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