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

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Partly Cloudy

85°F

29°C

Humidity 55%
Wind Speed Vrbl 3 mph
Barometer 29.97 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 11 Sep 5:53 pm EDT
Extended Forecast for

Mountain Home TN

  • Tonight

    Tonight: Increasing clouds, with a low around 68. Calm wind becoming southeast around 5 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 86. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 3am, then showers likely. Low around 67. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Calm wind becoming southeast around 5 mph after midnight.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 68. Calm wind becoming southeast around 5 mph.
Saturday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 86. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms before 3am, then showers likely. Low around 67. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind.
Monday
Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 62. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 90.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 67.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain Home TN
 36.32°N 82.34°W (Elev. 1696 ft)
Last Update:
2:26 pm EDT Sep 11, 2026
Forecast Valid:
6pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation