National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

34°F

1°C

Humidity 89%
Wind Speed SW 10 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 31°F (-1°C)
Visibility 5.00 mi
Wind Chill26°F (-3°C)
Last update 17 Feb 7:56 am EST
Extended Forecast for

Bay Shore NY

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 43. Southwest wind 6 to 9 mph.

    High: 43 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 32. Light west wind.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain. High near 43. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 1am. Mostly cloudy, with a low around 32. North wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 32 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 40. Northeast wind around 7 mph becoming east in the afternoon.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

  • Friday

    Friday: Rain. High near 41. Chance of precipitation is 80%.

    High: 41 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 43. Southwest wind 6 to 9 mph.
Tonight
Increasing clouds, with a low around 32. Light west wind.
Wednesday
Rain. High near 43. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before 1am. Mostly cloudy, with a low around 32. North wind 3 to 6 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 40. Northeast wind around 7 mph becoming east in the afternoon.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
Rain. High near 41. Chance of precipitation is 80%.
Friday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Saturday
A chance of rain and snow before 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 28.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 38.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 36.
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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:
4:22 am EST Feb 17, 2026
Forecast Valid:
8am EST Feb 17, 2026-6pm EST Feb 23, 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