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.

Overcast

68°F

20°C

Humidity 90%
Wind Speed S 13 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 3:56 am EDT
Extended Forecast for

North Patchogue NY

  • Today

    Today: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. South wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: Increasing clouds, with a low around 68. West wind 8 to 13 mph, with gusts as high as 28 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 83. West wind 8 to 11 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. West wind 7 to 9 mph.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. West wind around 14 mph.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

Detailed Forecast

Today
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. South wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Tonight
Increasing clouds, with a low around 68. West wind 8 to 13 mph, with gusts as high as 28 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 83. West wind 8 to 11 mph.
Friday Night
Mostly clear, with a low around 65. West wind 7 to 9 mph.
Saturday
Sunny, with a high near 84. West wind around 14 mph.
Saturday Night
Clear, with a low around 65.
Sunday
Sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 65.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 82. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 63. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North Patchogue NY
 40.8°N 73.03°W (Elev. 49 ft)
Last Update:
2:43 am EDT Jun 18, 2026
Forecast Valid:
4am EDT Jun 18, 2026-6pm EDT Jun 24, 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