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

50°F

10°C

Humidity 80%
Wind Speed NW 7 mph
Barometer 29.78 in (1008.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 15 May 5:56 am EDT
Extended Forecast for

East Patchogue NY

  • Today

    Today: A slight chance of showers before 11am, then a slight chance of showers after 2pm. Partly sunny, with a high near 65. West wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 65 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 71. Light southwest wind becoming south 8 to 13 mph in the morning.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Southwest wind 6 to 9 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 11am, then a slight chance of showers after 2pm. Partly sunny, with a high near 65. West wind 7 to 10 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 71. Light southwest wind becoming south 8 to 13 mph in the morning.
Saturday Night
Partly cloudy, with a low around 58. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 78. Southwest wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
5:24 am EDT May 15, 2026
Forecast Valid:
6am EDT May 15, 2026-6pm EDT May 21, 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