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.

Heavy Rain Fog/Mist

38°F

3°C

Humidity 97%
Wind Speed Calm
Barometer 30.24 in (1024.0 mb)
Dewpoint 37°F (3°C)
Visibility 1.50 mi
Last update 5 Mar 8:56 am EST
Extended Forecast for

Bay Shore NY

  • Today

    Today: Rain. Patchy fog. High near 40. East wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain, mainly before 4am. Patchy fog. Low around 34. East wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of rain, mainly before 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 42. Northeast wind 8 to 11 mph, with gusts as high as 25 mph.

    High: 42 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: A 20 percent chance of rain after 1am. Cloudy, with a low around 34. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 34 °F

    Cloudy then
    Slight Chance
    Rain

  • Saturday

    Saturday: Cloudy, with a high near 49. Calm wind becoming south 5 to 7 mph in the morning.

    High: 49 °F

    Cloudy

  • Saturday Night

    Saturday Night: Showers likely. Cloudy, with a temperature rising to around 46 by 5am. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
Rain. Patchy fog. High near 40. East wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain, mainly before 4am. Patchy fog. Low around 34. East wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 30 percent chance of rain, mainly before 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 42. Northeast wind 8 to 11 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of rain after 1am. Cloudy, with a low around 34. Northeast wind 5 to 7 mph becoming calm in the evening.
Saturday
Cloudy, with a high near 49. Calm wind becoming south 5 to 7 mph in the morning.
Saturday Night
Showers likely. Cloudy, with a temperature rising to around 46 by 5am. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 55.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Cloudy, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bay Shore NY
 40.71°N 73.25°W (Elev. 13 ft)
Last Update:
6:25 am EST Mar 5, 2026
Forecast Valid:
9am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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