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.

Rain Fog/Mist

47°F

8°C

Humidity 93%
Wind Speed SW 6 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 45°F (7°C)
Visibility 2.00 mi
Wind Chill44°F (7°C)
Last update 30 Nov 1:56 pm EST
Extended Forecast for

Hauppauge NY

  • This Afternoon

    This Afternoon: Rain. High near 49. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Tonight

    Tonight: A 40 percent chance of rain before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 34. West wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 34 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 28. Light and variable wind. Chance of precipitation is 20%.

    Low: 28 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain. High near 46. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 46 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain before 1am. Cloudy during the early evening, then gradual clearing, with a low around 28.

    Low: 28 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain. High near 49. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A 40 percent chance of rain before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 34. West wind 11 to 13 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 28. Light and variable wind. Chance of precipitation is 20%.
Tuesday
Rain. High near 46. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
A 40 percent chance of rain before 1am. Cloudy during the early evening, then gradual clearing, with a low around 28.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Mostly sunny, with a high near 36.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
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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:
2:29 pm EST Nov 30, 2025
Forecast Valid:
2pm EST Nov 30, 2025-6pm EST Dec 6, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation