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

63°F

17°C

Humidity 58%
Wind Speed S 7 mph
Barometer 29.97 in (1015.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 10 Mar 3:56 pm EDT
Extended Forecast for

Patchogue NY

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 39. South wind 5 to 7 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 54. Light south wind increasing to 5 to 10 mph in the morning.

    High: 54 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain and thunderstorms between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 46. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely before 5pm, then rain and snow likely. Cloudy, with a temperature rising to near 49 by 11am, then falling to around 42 during the remainder of the day. Northwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 49 °F⇓

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 6 to 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Snow Likely
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35.

    Low: 35 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 39. South wind 5 to 7 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 54. Light south wind increasing to 5 to 10 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain and thunderstorms between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 46. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
Rain likely before 5pm, then rain and snow likely. Cloudy, with a temperature rising to near 49 by 11am, then falling to around 42 during the remainder of the day. Northwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
Snow likely before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 6 to 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 45.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 35.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 50.
Sunday Night
Rain. Low around 42. Chance of precipitation is 80%.
Monday
Rain. High near 52. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of snow. Mostly sunny, with a high near 36.
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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:
1:57 pm EDT Mar 10, 2026
Forecast Valid:
4pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation