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.

Rain

48°F

9°C

Humidity 96%
Wind Speed Calm
Barometer 29.76 in (1007.7 mb)
Dewpoint 47°F (8°C)
Visibility NA
Last update 30 Apr 4:56 am EDT
Extended Forecast for

Bay Shore NY

  • Overnight

    Overnight: Showers likely. Cloudy, with a low around 47. Southeast wind around 5 mph. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. Northwest wind around 6 mph.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63. West wind 9 to 11 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. Southwest wind 5 to 7 mph.

    Low: 47 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 47. Southeast wind around 5 mph. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 45. Northwest wind around 6 mph.
Friday
Sunny, with a high near 63. West wind 9 to 11 mph.
Friday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. Southwest wind 5 to 7 mph.
Saturday
A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 58.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 61. Breezy.
Monday Night
Partly cloudy, with a low around 51. Breezy.
Tuesday
Mostly sunny, with a high near 65. Breezy.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 64. Breezy.
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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:
4:33 am EDT Apr 30, 2026
Forecast Valid:
5am EDT Apr 30, 2026-6pm EDT May 6, 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