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.

Fair

58°F

14°C

Humidity 84%
Wind Speed W 5 mph
Barometer 30.18 in (1022.0 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 4 Oct 3:56 am EDT
Extended Forecast for

Bay Shore NY

  • Today

    Today: Sunny, with a high near 78. Southwest wind around 7 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Southwest wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.

    Low: 59 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 78. Southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 60. Southwest wind around 6 mph.
Monday
Sunny, with a high near 76. Light southwest wind becoming south 5 to 10 mph in the morning.
Monday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 61.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Wednesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bay Shore NY
 40.73°N 73.25°W (Elev. 13 ft)
Last Update:
1:43 am EDT Oct 4, 2025
Forecast Valid:
4am EDT Oct 4, 2025-6pm EDT Oct 10, 2025
 
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