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

35°F

2°C

Humidity 96%
Wind Speed N 12 mph
Barometer 29.65 in (1004.1 mb)
Dewpoint 34°F (1°C)
Visibility 2.00 mi
Wind Chill27°F (-3°C)
Last update 20 Feb 8:56 pm EST
Extended Forecast for

Bay Shore NY

Winter Storm Watch February 22, 06:00am until February 23, 06:00pm
Coastal Flood Watch February 22, 10:00pm until February 23, 04:00am
Click here for hazard details and duration
Winter Storm Watch
Coastal Flood Watch

  • Tonight

    Tonight: A chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Areas of fog before midnight. Otherwise, mostly cloudy, with a low around 32. West wind around 7 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Slight Chance
    Rain and
    Areas Fog
    then Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 45. West wind around 7 mph becoming north in the afternoon.

    High: 45 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. East wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow before 10am, then rain and snow likely between 10am and 4pm, then snow likely after 4pm. Cloudy, with a high near 38. Wind chill values between 25 and 30. East wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Snow. Areas of blowing snow. Low around 28. Windy, with a northeast wind 20 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 28 °F

    Snow and
    Areas Blowing
    Snow

  • Monday

    Monday: Snow, mainly before 1pm. Areas of blowing snow before 1pm. High near 36. Windy. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 36 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Areas of fog before midnight. Otherwise, mostly cloudy, with a low around 32. West wind around 7 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 45. West wind around 7 mph becoming north in the afternoon.
Saturday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. East wind 3 to 6 mph. Chance of precipitation is 40%.
Sunday
A chance of snow before 10am, then rain and snow likely between 10am and 4pm, then snow likely after 4pm. Cloudy, with a high near 38. Wind chill values between 25 and 30. East wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. Areas of blowing snow. Low around 28. Windy, with a northeast wind 20 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow before 1pm. High near 36. Windy. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 41.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 32.
Thursday
Rain likely. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 40.
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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:
5:24 pm EST Feb 20, 2026
Forecast Valid:
9pm EST Feb 20, 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