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.

A Few Clouds

66°F

19°C

Humidity 27%
Wind Speed SW 15 G 24 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 9 Mar 11:56 am EDT
Extended Forecast for

Bay Shore NY

  • This Afternoon

    This Afternoon: Sunny, with a temperature falling to around 57 by 5pm. Southwest wind 8 to 11 mph.

    High: 61 °F⇓

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. South wind 5 to 7 mph.

    Low: 38 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 60 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 40. South wind 3 to 5 mph.

    Low: 40 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 54. South wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Partly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a temperature falling to around 57 by 5pm. Southwest wind 8 to 11 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. South wind 5 to 7 mph.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 40. South wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 54. South wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 31. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 45.
Friday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Cloudy, with a high near 49.
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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:
11:18 am EDT Mar 9, 2026
Forecast Valid:
12pm EDT Mar 9, 2026-6pm EDT Mar 15, 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