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

Bristol / Johnson / Kingsport, Tri-City Regional Airport (KTRI)

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Overcast

65°F

18°C

Humidity 70%
Wind Speed SW 14 mph
Barometer 30.06 in (1016.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 25 Dec 4:53 pm EST
Extended Forecast for

Walnut Hill TN

  • Christmas Day

    Christmas Day: A 20 percent chance of showers. Mostly cloudy, with a high near 65. West wind around 5 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers. Patchy fog after 5am. Otherwise, cloudy, with a low around 55. West wind around 5 mph becoming calm.

    Low: 55 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers, mainly before 10am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 56. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 66. West wind around 5 mph becoming calm in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday

    Monday: Rain showers before 5pm, then a chance of rain and snow showers. High near 57. Breezy. Chance of precipitation is 80%.

    High: 57 °F

    Breezy.
    Showers then
    Rain/Snow

Detailed Forecast

Christmas Day
A 20 percent chance of showers. Mostly cloudy, with a high near 65. West wind around 5 mph.
Tonight
A 40 percent chance of showers. Patchy fog after 5am. Otherwise, cloudy, with a low around 55. West wind around 5 mph becoming calm.
Friday
A 30 percent chance of showers, mainly before 10am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56. West wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 66. West wind around 5 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph.
Sunday
Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph.
Sunday Night
A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 47.
Monday
Rain showers before 5pm, then a chance of rain and snow showers. High near 57. Breezy. Chance of precipitation is 80%.
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 33.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly clear, with a low around 22.
New Year's Day
Sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill TN
 36.58°N 82.23°W (Elev. 1601 ft)
Last Update:
12:31 pm EST Dec 25, 2025
Forecast Valid:
5pm EST Dec 25, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
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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