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.

Light Drizzle Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed NW 13 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 48°F (9°C)
Visibility 0.75 mi
Wind Chill43°F (6°C)
Last update 19 Apr 9:56 am EDT
Extended Forecast for

Kings Park NY

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Today

    Today: Showers, mainly before 5pm. Temperature falling to around 46 by 5pm. Breezy, with a northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F⇓

    Chance
    Showers then
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 41. Northwest wind 6 to 9 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 30 percent chance of showers. Partly sunny, with a high near 52. Northwest wind 7 to 10 mph.

    High: 52 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. North wind around 14 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 53. North wind 6 to 9 mph becoming southwest in the afternoon.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 43.

    Low: 43 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly before 5pm. Temperature falling to around 46 by 5pm. Breezy, with a northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 41. Northwest wind 6 to 9 mph.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 52. Northwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 35. North wind around 14 mph.
Tuesday
Sunny, with a high near 53. North wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 43.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 61.
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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:
10:15 am EDT Apr 19, 2026
Forecast Valid:
10am EDT Apr 19, 2026-6pm EDT Apr 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