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.

Mostly Cloudy

58°F

14°C

Humidity 78%
Wind Speed SW 14 G 26 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 13 Apr 11:56 am EDT
Extended Forecast for

Bay Shore NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 66. Southwest wind around 17 mph, with gusts as high as 31 mph.

    High: 66 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Southwest wind 6 to 13 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. South wind 5 to 9 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 74. Southwest wind 6 to 11 mph.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 66. Southwest wind around 17 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 53. Southwest wind 6 to 13 mph.
Tuesday
Mostly sunny, with a high near 70. South wind 5 to 9 mph.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 74. Southwest wind 6 to 11 mph.
Wednesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 65.
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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:
9:09 am EDT Apr 13, 2026
Forecast Valid:
12pm EDT Apr 13, 2026-6pm EDT Apr 19, 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