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.

Mostly Cloudy

37°F

3°C

Humidity 73%
Wind Speed S 14 mph
Barometer 29.65 in (1004.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 25 Feb 1:56 pm EST
Extended Forecast for

Kings Park NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. Southwest wind 10 to 13 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Southwest wind around 11 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 4pm. Partly sunny, with a high near 37. Northwest wind 5 to 8 mph.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. Light and variable wind becoming west around 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 38. Light and variable wind becoming south around 5 mph in the afternoon.

    High: 38 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a steady temperature around 33.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. Southwest wind 10 to 13 mph.
Tonight
Partly cloudy, with a low around 31. Southwest wind around 11 mph.
Thursday
A 20 percent chance of snow after 4pm. Partly sunny, with a high near 37. Northwest wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 25. Light and variable wind becoming west around 5 mph.
Friday
Sunny, with a high near 38. Light and variable wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a steady temperature around 33.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly cloudy, with a high near 37.
Sunday Night
Partly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 27.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kings Park NY
 40.91°N 73.24°W (Elev. 0 ft)
Last Update:
12:43 pm EST Feb 25, 2026
Forecast Valid:
2pm EST Feb 25, 2026-6pm EST Mar 3, 2026
 
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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