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

61°F

16°C

Humidity 65%
Wind Speed S 14 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 31 Mar 3:56 pm EDT
Extended Forecast for

Kings Park NY

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 54. Southwest wind 15 to 18 mph.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 70. Southwest wind 10 to 14 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 43. East wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a high near 47. East wind 15 to 17 mph.

    High: 47 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 30 percent chance of light rain, mainly between 8pm and midnight. Areas of fog after midnight. Otherwise, cloudy, with a low around 40. East wind 8 to 14 mph.

    Low: 40 °F

    Chance Light
    Rain and
    Areas Fog

  • Friday

    Friday: Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 61.

    High: 61 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 54. Southwest wind 15 to 18 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 70. Southwest wind 10 to 14 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 43. East wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a high near 47. East wind 15 to 17 mph.
Thursday Night
A 30 percent chance of light rain, mainly between 8pm and midnight. Areas of fog after midnight. Otherwise, cloudy, with a low around 40. East wind 8 to 14 mph.
Friday
Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 50.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 52.
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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:
2:28 pm EDT Mar 31, 2026
Forecast Valid:
4pm EDT Mar 31, 2026-6pm EDT Apr 7, 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