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

35°F

2°C

Humidity 78%
Wind Speed SW 8 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 10 Dec 6:56 am EST
Extended Forecast for

Patchogue NY

  • Today

    Today: A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 34 mph.

    High: 49 °F

    Partly Sunny
    then Chance
    Rain and
    Breezy

  • Tonight

    Tonight: Rain, mainly between 7pm and 10pm. Low around 29. Southwest wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38. Wind chill values between 20 and 25. Breezy, with a west wind 16 to 21 mph, with gusts as high as 34 mph.

    High: 38 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. Wind chill values between 10 and 20. Breezy, with a west wind 17 to 21 mph, with gusts as high as 36 mph.

    Low: 24 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36. West wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 34 mph.
Tonight
Rain, mainly between 7pm and 10pm. Low around 29. Southwest wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 38. Wind chill values between 20 and 25. Breezy, with a west wind 16 to 21 mph, with gusts as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 24. Wind chill values between 10 and 20. Breezy, with a west wind 17 to 21 mph, with gusts as high as 36 mph.
Friday
Mostly sunny, with a high near 36. West wind 13 to 16 mph, with gusts as high as 28 mph.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Sunday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
2:32 am EST Dec 10, 2025
Forecast Valid:
7am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation