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

Hazardous Weather Conditions

Current conditions at

Farmingdale - Republic Airport (KFRG)

Lat: 40.73°NLon: 73.42°WElev: 72ft.

Fog/Mist

30°F

-1°C

Humidity 88%
Wind Speed Calm
Barometer 30.11 in (1019.7 mb)
Dewpoint 27°F (-3°C)
Visibility 3.00 mi
Last update 17 Jan 10:53 pm EST
Extended Forecast for

4 Miles S Copiague NY

Winter Weather Advisory January 18, 10:00am until January 18, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of rain between 1am and 4am, then a chance of snow. Cloudy, with a steady temperature around 36. West wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Periods of rain and snow, becoming all snow after 11am. High near 36. West wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Rain/Snow
    then Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Wind chill values between 20 and 25. Northwest wind 10 to 13 mph.

    Low: 27 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Wind chill values between 15 and 20. Breezy, with a west wind 14 to 22 mph.

    High: 34 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 20. Breezy, with a west wind 20 to 23 mph.

    Low: 20 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A slight chance of rain between 1am and 4am, then a chance of snow. Cloudy, with a steady temperature around 36. West wind 5 to 7 mph. Chance of precipitation is 40%.
Sunday
Periods of rain and snow, becoming all snow after 11am. High near 36. West wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 27. Wind chill values between 20 and 25. Northwest wind 10 to 13 mph.
M.L.King Day
Mostly sunny, with a high near 34. Wind chill values between 15 and 20. Breezy, with a west wind 14 to 22 mph.
Monday Night
Partly cloudy, with a low around 20. Breezy, with a west wind 20 to 23 mph.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 33. Breezy.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 34.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Copiague NY
 40.62°N 73.39°W (Elev. 20 ft)
Last Update:
5:41 pm EST Jan 17, 2026
Forecast Valid:
11pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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