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.

A Few Clouds

62°F

17°C

Humidity 73%
Wind Speed E 6 mph
Barometer 30.26 in (1024.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 3 Oct 6:56 pm EDT
Extended Forecast for

Patchogue NY

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northeast wind 6 to 8 mph.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Showers likely, mainly after 5pm. Increasing clouds, with a high near 64. East wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly before 11pm. Cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 5 to 14 mph.

    High: 68 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Clear, with a low around 49. Northwest wind 10 to 13 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Northeast wind 6 to 8 mph.
Sunday
Showers likely, mainly after 5pm. Increasing clouds, with a high near 64. East wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely, mainly before 11pm. Cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 5 to 14 mph.
Monday Night
Clear, with a low around 49. Northwest wind 10 to 13 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 49.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 65.
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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:
2:19 pm EDT Oct 3, 2026
Forecast Valid:
7pm EDT Oct 3, 2026-6pm EDT Oct 10, 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