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.

Heavy Snow Fog/Mist Blowing Snow and Windy

29°F

-2°C

Humidity 92%
Wind Speed N 29 mph
Barometer 29.34 in (993.5 mb)
Dewpoint 27°F (-3°C)
Visibility 0.25 mi
Wind Chill14°F (-10°C)
Last update 23 Feb 5:56 am EST
Extended Forecast for

Bay Shore NY

Coastal Flood Advisory February 23, 11:00am until February 23, 06:00pm
Blizzard Warning February 23, 05:59am until February 23, 06:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Blizzard Warning
  •  
    Blizzard Warning February 23, 05:59am until February 23, 06:00pm

    NOW until 6:00pm Mon

    Blizzard Warning

  • Overnight

    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. High near 34. Wind chill values between 10 and 20. Windy, with a north wind 24 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 34 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 20. Wind chill values between 10 and 15. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 32 mph.

    Low: 20 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Wind chill values between 10 and 20. West wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 31 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 1am, mixing with rain after 4am. Increasing clouds, with a temperature falling to near 21 by 10pm, then rising to around 30 during the remainder of the night. Light and variable wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 50%.

    Low: 21 °F⇑

    Partly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow likely, becoming all rain after 10am, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 40. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Partly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Areas of blowing snow. Low around 29. Wind chill values between 10 and 15. Windy, with a north wind around 36 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 13 to 19 inches possible.
Monday
Snow, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow. High near 34. Wind chill values between 10 and 20. Windy, with a north wind 24 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 20. Wind chill values between 10 and 15. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 31. Wind chill values between 10 and 20. West wind 9 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of snow after 1am, mixing with rain after 4am. Increasing clouds, with a temperature falling to near 21 by 10pm, then rising to around 30 during the remainder of the night. Light and variable wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 50%.
Wednesday
Rain and snow likely, becoming all rain after 10am, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 40. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
A chance of rain and snow after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 50%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 29.
Saturday
Sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bay Shore NY
 40.71°N 73.25°W (Elev. 13 ft)
Last Update:
1:42 am EST Feb 23, 2026
Forecast Valid:
5am EST Feb 23, 2026-6pm EST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation