National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

75°F

24°C

Humidity 90%
Wind Speed S 7 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 2 Aug 12:56 am EDT
Extended Forecast for

Bay Shore NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 71. South wind around 7 mph.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 82. South wind 7 to 13 mph.

    High: 82 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 71. South wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 81. South wind 11 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 71. South wind around 7 mph.
Sunday
Mostly cloudy, with a high near 82. South wind 7 to 13 mph.
Sunday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 71. South wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm. High near 81. South wind 11 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 83.
Tuesday Night
Mostly cloudy, with a low around 70.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Mostly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 84.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 73.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bay Shore NY
 40.73°N 73.25°W (Elev. 13 ft)
Last Update:
10:37 pm EDT Aug 1, 2026
Forecast Valid:
1am EDT Aug 2, 2026-6pm EDT Aug 8, 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