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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Overcast

64°F

18°C

Humidity 78%
Wind Speed SW 6 G 14 mph
Barometer 30.07 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Dec 3:55 pm EST
Extended Forecast for

Greeneville TN

  • Tonight

    Tonight: A slight chance of showers between 8pm and 3am. Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers between 7am and 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 67. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly before 1am. Cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind around 5 mph becoming calm in the morning.

    High: 68 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 68. South wind around 5 mph.

    High: 68 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 47. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Rain showers likely before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A chance of rain and snow showers before 10pm, then a slight chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 20%.

    Low: 20 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Tonight
A slight chance of showers between 8pm and 3am. Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Friday
A slight chance of showers between 7am and 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 67. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
A 40 percent chance of showers, mainly before 1am. Cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind around 5 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 51. Calm wind.
Sunday
Mostly cloudy, with a high near 68. South wind around 5 mph.
Sunday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 47. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
Rain showers likely before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
Monday Night
A chance of rain and snow showers before 10pm, then a slight chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Mostly clear, with a low around 23.
New Year's Day
Sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greeneville TN
 36.15°N 82.84°W (Elev. 1535 ft)
Last Update:
12:31 pm EST Dec 25, 2025
Forecast Valid:
4pm EST Dec 25, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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