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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Fair

35°F

2°C

Humidity 93%
Wind Speed Calm
Barometer 30.19 in (1021.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 20 Mar 2:53 am EDT
Extended Forecast for

Walnut Hill TN

  • Overnight

    Overnight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 67. Light south wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 67 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 72. Southwest wind around 5 mph.

    High: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers. Partly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 37. Calm wind.
Friday
Increasing clouds, with a high near 67. Light south wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 72. Southwest wind around 5 mph.
Saturday Night
A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 52. Calm wind.
Sunday
Mostly sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 60.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill TN
 36.56°N 82.29°W (Elev. 1762 ft)
Last Update:
2:26 am EDT Mar 20, 2026
Forecast Valid:
3am EDT Mar 20, 2026-6pm EDT Mar 26, 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