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.

Fair

58°F

14°C

Humidity 84%
Wind Speed SW 7 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Apr 12:56 am EDT
Extended Forecast for

Patchogue NY

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 56. West wind 3 to 5 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers before 11am, then a chance of showers after 2pm. Partly sunny, with a high near 73. West wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 3 to 5 mph.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58. East wind 6 to 8 mph.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Cloudy, with a low around 46. Southeast wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 56. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 56. West wind 3 to 5 mph.
Friday
A slight chance of showers before 11am, then a chance of showers after 2pm. Partly sunny, with a high near 73. West wind 3 to 7 mph. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 58. East wind 6 to 8 mph.
Saturday Night
A 30 percent chance of showers after 2am. Cloudy, with a low around 46. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Showers, mainly after 8am. High near 56. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers, mainly before 8pm. Low around 37. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 58.
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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:
7:20 pm EDT Apr 16, 2026
Forecast Valid:
1am EDT Apr 17, 2026-6pm EDT Apr 23, 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