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

72°F

22°C

Humidity 84%
Wind Speed W 5 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 3:56 pm EDT
Extended Forecast for

Kings Park NY

  • Tonight

    Tonight: Patchy drizzle before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 65. East wind around 6 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 80. East wind 6 to 10 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Mostly clear, with a low around 63. West wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Clear

  • Monday

    Monday: Sunny, with a high near 79. Southwest wind 5 to 11 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. West wind around 8 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy drizzle before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 65. East wind around 6 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 80. East wind 6 to 10 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 63. West wind 6 to 8 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 79. Southwest wind 5 to 11 mph.
Monday Night
Mostly clear, with a low around 61. West wind around 8 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 67.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kings Park NY
 40.89°N 73.27°W (Elev. 98 ft)
Last Update:
2:45 pm EDT Aug 22, 2026
Forecast Valid:
4pm EDT Aug 22, 2026-6pm EDT Aug 29, 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