National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

21°F

-6°C

Humidity 65%
Wind Speed N 6 mph
Barometer 30.12 in (1020.2 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 5 Feb 1:56 am EST
Extended Forecast for

Patchogue NY

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 21. Wind chill values between 10 and 15. North wind around 7 mph.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 29. Wind chill values between 10 and 20. North wind 5 to 10 mph becoming light northwest in the afternoon.

    High: 29 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Light north wind.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 28. Wind chill values between 15 and 20. North wind around 6 mph becoming calm in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow likely, mainly after 1am. Cloudy, with a low around 17. Light southwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Slight Chance
    Snow then
    Snow Likely

  • Saturday

    Saturday: Snow likely, mainly before noon. Cloudy, with a temperature rising to near 23 by 10am, then falling to around 15 during the remainder of the day. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F⇓

    Snow Likely
    and Blustery
    then Chance
    Snow and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 4. Windy.

    Low: 4 °F

    Partly Cloudy
    and Windy

  • Sunday

    Sunday: Sunny and cold, with a high near 18.

    High: 18 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 21. Wind chill values between 10 and 15. North wind around 7 mph.
Thursday
Sunny, with a high near 29. Wind chill values between 10 and 20. North wind 5 to 10 mph becoming light northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 16. Light north wind.
Friday
Mostly cloudy, with a high near 28. Wind chill values between 15 and 20. North wind around 6 mph becoming calm in the afternoon.
Friday Night
Snow likely, mainly after 1am. Cloudy, with a low around 17. Light southwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon. Cloudy, with a temperature rising to near 23 by 10am, then falling to around 15 during the remainder of the day. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Partly cloudy, with a low around 4. Windy.
Sunday
Sunny and cold, with a high near 18.
Sunday Night
Mostly clear, with a low around 8.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
1:31 am EST Feb 5, 2026
Forecast Valid:
2am EST Feb 5, 2026-6pm EST Feb 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation