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

51°F

11°C

Humidity 61%
Wind Speed SE 7 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 26 Apr 6:56 pm EDT
Extended Forecast for

Patchogue NY

  • Tonight

    Tonight: Mostly clear, with a low around 40. East wind around 6 mph becoming light and variable in the evening.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. North wind 6 to 8 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Light northeast wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. North wind 5 to 8 mph becoming east in the afternoon.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Light northeast wind.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers, mainly before 2pm. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 40. East wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 63. North wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 42. Light northeast wind.
Tuesday
Sunny, with a high near 60. North wind 5 to 8 mph becoming east in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 43. Light northeast wind.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.
Thursday
Showers, mainly before 2pm. High near 56. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 57.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 59.
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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:
6:29 pm EDT Apr 26, 2026
Forecast Valid:
7pm EDT Apr 26, 2026-6pm EDT May 3, 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