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.

Overcast

35°F

2°C

Humidity 93%
Wind Speed NE 7 mph
Barometer 30.37 in (1028.6 mb)
Dewpoint 33°F (1°C)
Visibility 9.00 mi
Wind Chill29°F (-2°C)
Last update 6 Mar 11:56 pm EST
Extended Forecast for

Hauppauge NY

  • Overnight

    Overnight: A chance of drizzle after 4am. Cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Chance
    Drizzle

  • Saturday

    Saturday: A chance of drizzle before 7am. Cloudy, with a high near 49. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 49 °F

    Chance
    Drizzle then
    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Areas of dense fog after 1am. Otherwise, cloudy, with a temperature rising to around 48 by midnight. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 44 °F⇑

    Chance
    Showers and
    Areas Dense
    Fog

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. West wind 7 to 10 mph.

    High: 58 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
A chance of drizzle after 4am. Cloudy, with a low around 33. Calm wind.
Saturday
A chance of drizzle before 7am. Cloudy, with a high near 49. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Areas of dense fog after 1am. Otherwise, cloudy, with a temperature rising to around 48 by midnight. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday
A 30 percent chance of showers, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. West wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 55.
Wednesday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Mostly cloudy, with a high near 44.
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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:
12:51 pm EST Mar 6, 2026
Forecast Valid:
12am EST Mar 7, 2026-6pm EDT Mar 13, 2026
 
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