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.

Mostly Cloudy

72°F

22°C

Humidity 91%
Wind Speed NE 9 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 11 Jul 5:56 am EDT
Extended Forecast for

Patchogue NY

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 80. Northeast wind 5 to 9 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 66. East wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 83. Northeast wind around 7 mph becoming southeast in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light southwest wind becoming south 6 to 11 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 80. Northeast wind 5 to 9 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 66. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 83. Northeast wind around 7 mph becoming southeast in the afternoon.
Sunday Night
Mostly clear, with a low around 67. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 83. Light southwest wind becoming south 6 to 11 mph in the afternoon.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 84.
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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:
5:01 am EDT Jul 11, 2026
Forecast Valid:
6am EDT Jul 11, 2026-6pm EDT Jul 17, 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