National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

76°F

24°C

Humidity 40%
Wind Speed N 7 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Jun 9:56 am EDT
Extended Forecast for

Kings Park NY

  • Today

    Today: Increasing clouds, with a high near 83. West wind 3 to 7 mph.

    High: 83 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 76. Light east wind becoming southeast 8 to 13 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Partly sunny, with a high near 81. North wind around 8 mph.

    High: 81 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 83. West wind 3 to 7 mph.
Tonight
Partly cloudy, with a low around 64. Light and variable wind.
Monday
Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 76. Light east wind becoming southeast 8 to 13 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 66. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 81. North wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 84.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kings Park NY
 40.88°N 73.21°W (Elev. 85 ft)
Last Update:
2:19 am EDT Jun 21, 2026
Forecast Valid:
10am EDT Jun 21, 2026-6pm EDT Jun 27, 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