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.

A Few Clouds

70°F

21°C

Humidity 90%
Wind Speed SW 6 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 8 Jul 9:56 pm EDT
Extended Forecast for

Patchogue NY

  • Tonight

    Tonight: Mostly clear, with a low around 69. Southwest wind around 8 mph.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. South wind 8 to 14 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly between 11pm and 2am. Mostly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 71 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Heat index values as high as 95. West wind 6 to 10 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. West wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 69. Southwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 82. South wind 8 to 14 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly between 11pm and 2am. Mostly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming light after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Heat index values as high as 95. West wind 6 to 10 mph.
Friday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. West wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
7:53 pm EDT Jul 8, 2026
Forecast Valid:
10pm EDT Jul 8, 2026-6pm EDT Jul 15, 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