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 Snow

34°F

1°C

Humidity 82%
Wind Speed E 15 G 26 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 29°F (-2°C)
Visibility 1.50 mi
Wind Chill24°F (-4°C)
Last update 22 Feb 11:56 am EST
Extended Forecast for

2 Miles NNW Medford NY

Blizzard Warning February 22, 01:00pm until February 23, 06:00pm
Coastal Flood Warning February 23, 12:00am until February 23, 05:00am
Click here for hazard details and duration
Blizzard Warning
Coastal Flood Warning

  • This Afternoon

    This Afternoon: Snow, mainly after 4pm. High near 36. Wind chill values between 20 and 25. East wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Areas of blowing snow. Low around 29. Wind chill values between 15 and 20. Windy, with a northeast wind 21 to 26 mph increasing to 29 to 34 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

    Low: 29 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow before 4pm. High near 32. Wind chill values between 15 and 20. Windy, with a northwest wind 24 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 32 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 20. Wind chill values between 10 and 15. Blustery, with a northwest wind 13 to 20 mph, with gusts as high as 33 mph.

    Low: 20 °F

    Chance Snow
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Northwest wind 11 to 13 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after 1am. Increasing clouds, with a low around 18.

    Low: 18 °F

    Partly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely before 8am, then a chance of rain and snow between 8am and 1pm, then a chance of rain after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain. Partly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

Detailed Forecast

This Afternoon
Snow, mainly after 4pm. High near 36. Wind chill values between 20 and 25. East wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow. The snow could be heavy at times. Areas of blowing snow. Low around 29. Wind chill values between 15 and 20. Windy, with a northeast wind 21 to 26 mph increasing to 29 to 34 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.
Monday
Snow, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow before 4pm. High near 32. Wind chill values between 15 and 20. Windy, with a northwest wind 24 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday Night
A 30 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 20. Wind chill values between 10 and 15. Blustery, with a northwest wind 13 to 20 mph, with gusts as high as 33 mph.
Tuesday
Mostly sunny, with a high near 30. Northwest wind 11 to 13 mph.
Tuesday Night
A 30 percent chance of snow after 1am. Increasing clouds, with a low around 18.
Wednesday
Snow likely before 8am, then a chance of rain and snow between 8am and 1pm, then a chance of rain after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 38. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of rain. Partly cloudy, with a low around 30.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 41.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 30.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Medford NY
 40.84°N 72.99°W (Elev. 128 ft)
Last Update:
5:57 am EST Feb 22, 2026
Forecast Valid:
12pm EST Feb 22, 2026-6pm EST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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