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.

A Few Clouds

50°F

10°C

Humidity 83%
Wind Speed Calm
Barometer 30.30 in (1025.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 24 Dec 8:53 am EST
Extended Forecast for

3 Miles SW Piney Flats TN

  • Today

    Today: Partly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 52. Calm wind becoming southwest around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Christmas Day

    Christmas Day: Showers. High near 65. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 1am. Cloudy, with a low around 55. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. South wind 5 to 10 mph.

    High: 64 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 68. West wind around 5 mph.

    High: 68 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers. Cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 64. Calm wind.
Tonight
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 52. Calm wind becoming southwest around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
Showers. High near 65. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, mainly before 1am. Cloudy, with a low around 55. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. South wind 5 to 10 mph.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Southwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
Mostly cloudy, with a high near 68. West wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
A 50 percent chance of showers. Cloudy, with a high near 66.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 38. Breezy.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Piney Flats TN
 36.41°N 82.39°W (Elev. 1440 ft)
Last Update:
6:06 am EST Dec 24, 2025
Forecast Valid:
9am EST Dec 24, 2025-6pm EST Dec 30, 2025
 
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