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.

Overcast

37°F

3°C

Humidity 89%
Wind Speed Calm
Barometer 29.91 in (1012.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 6 Dec 5:56 am EST
Extended Forecast for

Hauppauge NY

  • Today

    Today: A chance of drizzle, mainly before 10am. Mostly cloudy, with a high near 41. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 41 °F

    Chance
    Drizzle

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 3 to 6 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Wind chill values between 15 and 20. Light west wind becoming northwest 8 to 13 mph in the evening. Winds could gust as high as 23 mph.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. North wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Today
A chance of drizzle, mainly before 10am. Mostly cloudy, with a high near 41. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 28. West wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 25. Wind chill values between 15 and 20. Light west wind becoming northwest 8 to 13 mph in the evening. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 31. North wind 10 to 16 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 43.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 38.
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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:
5:44 am EST Dec 6, 2025
Forecast Valid:
6am EST Dec 6, 2025-6pm EST Dec 12, 2025
 
Forecast Discussion
 
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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