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.

Overcast

33°F

1°C

Humidity 96%
Wind Speed W 3 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 32°F (0°C)
Visibility 7.00 mi
Last update 21 Feb 5:56 am EST
Extended Forecast for

Kings Park NY

Coastal Flood Watch February 23, 12:00am until February 23, 05:00am
Blizzard Warning February 22, 06:00am until February 23, 06:00pm
Click here for hazard details and duration
Coastal Flood Watch
Blizzard Warning

  • Today

    Today: Mostly sunny, with a high near 43. West wind 6 to 8 mph.

    High: 43 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of snow before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. Wind chill values between 25 and 30. Light and variable wind becoming east 5 to 10 mph in the evening. Chance of precipitation is 50%.

    Low: 32 °F

    Slight Chance
    Snow then
    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly after 7am. Cloudy, with a high near 34. Wind chill values between 20 and 25. Breezy, with an east wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow Likely
    and Breezy

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Areas of blowing snow. Low around 30. Wind chill values between 15 and 20. Windy, with a north wind 28 to 37 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

    Low: 30 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow. The snow could be heavy at times. Areas of blowing snow. High near 33. Windy, with a north wind 29 to 39 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 33 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 25. Blustery.

    Low: 25 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Mostly sunny, with a high near 43. West wind 6 to 8 mph.
Tonight
A slight chance of snow before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. Wind chill values between 25 and 30. Light and variable wind becoming east 5 to 10 mph in the evening. Chance of precipitation is 50%.
Sunday
Snow likely, mainly after 7am. Cloudy, with a high near 34. Wind chill values between 20 and 25. Breezy, with an east wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Areas of blowing snow. Low around 30. Wind chill values between 15 and 20. Windy, with a north wind 28 to 37 mph. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.
Monday
Snow. The snow could be heavy at times. Areas of blowing snow. High near 33. Windy, with a north wind 29 to 39 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 25. Blustery.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 41.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 41.
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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:
3:41 am EST Feb 21, 2026
Forecast Valid:
6am EST Feb 21, 2026-6pm EST Feb 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