Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

30°F

-1°C

Humidity 39%
Wind Speed W 15 G 21 mph
Barometer 29.85 in (1011.0 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 24 Feb 3:56 pm EST
Extended Forecast for

Hauppauge NY

  • Tonight

    Tonight: Snow likely after 4am.  Increasing clouds, with a temperature falling to near 19 by midnight, then rising to around 32 during the remainder of the night. West wind 5 to 8 mph becoming south after midnight.  Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: 19 °F

    Mostly Clear
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, mainly before 10am.  High near 39. Wind chill values between 25 and 35. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 4pm.  Partly sunny, with a high near 37. Wind chill values between 25 and 35. West wind around 6 mph.

    High: 37 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow, mainly before 4am.  Mostly cloudy, with a low around 25. Light and variable wind.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely after 4am. Increasing clouds, with a temperature falling to near 19 by midnight, then rising to around 32 during the remainder of the night. West wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Snow, possibly mixed with rain, mainly before 10am. High near 39. Wind chill values between 25 and 35. Southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
Partly cloudy, with a low around 29. West wind around 6 mph.
Thursday
A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 37. Wind chill values between 25 and 35. West wind around 6 mph.
Thursday Night
A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 25. Light and variable wind.
Friday
Mostly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
1:21 pm EST Feb 24, 2026
4pm EST Feb 24, 2026-6pm EST Mar 3, 2026
 
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Additional Resources

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