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.

Overcast

58°F

14°C

Humidity 78%
Wind Speed SW 15 G 23 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 13 Apr 2:56 pm EDT
Extended Forecast for

Patchogue NY

  • Tonight

    Tonight: Mostly clear, with a low around 51. West wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. South wind 3 to 8 mph.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 52. Southwest wind 6 to 8 mph.

    Low: 52 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 51. West wind 6 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 69. South wind 3 to 8 mph.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 52. Southwest wind 6 to 8 mph.
Wednesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 56.
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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:
9:09 am EDT Apr 13, 2026
Forecast Valid:
3pm EDT Apr 13, 2026-6pm EDT Apr 20, 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