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 67%
Wind Speed E 7 mph
Barometer 29.99 in (1015.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Feb 5:56 am EST
Extended Forecast for

Kings Park NY

  • Today

    Today: Mostly cloudy, with a high near 40. East wind around 8 mph.

    High: 40 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain after 4am. Cloudy, with a low around 33. East wind 6 to 9 mph.

    Low: 33 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: Rain, mainly after 7am. High near 40. East wind 10 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 33. Northeast wind 6 to 10 mph becoming northwest after midnight.

    Low: 33 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain before 10am, then a slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 41. West wind around 7 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Cloudy, with a low around 29.

    Low: 29 °F

    Chance Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Cloudy, with a high near 36.

    High: 36 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 40. East wind around 8 mph.
Tonight
A 50 percent chance of rain after 4am. Cloudy, with a low around 33. East wind 6 to 9 mph.
Friday
Rain, mainly after 7am. High near 40. East wind 10 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 33. Northeast wind 6 to 10 mph becoming northwest after midnight.
Saturday
A slight chance of rain before 10am, then a slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 41. West wind around 7 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 30.
Sunday
A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 50 percent chance of snow. Cloudy, with a low around 29.
Monday
A 30 percent chance of snow before 1pm. Cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly cloudy, with a high near 39.
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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:
1:10 am EST Feb 19, 2026
Forecast Valid:
6am EST Feb 19, 2026-6pm EST Feb 25, 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