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

Hazardous Weather Conditions

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Fair

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in (1018.1 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 2 Sep 2:53 am EDT
Extended Forecast for

Mountain Home TN

  • Overnight

    Overnight: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 99. Calm wind.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 70. Calm wind.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 99. Calm wind.
Wednesday Night
Mostly clear, with a low around 70. Calm wind.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.
Thursday Night
Mostly clear, with a low around 70. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 20%.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 67.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Labor Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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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 am EDT Sep 2, 2026
Forecast Valid:
3am EDT Sep 2, 2026-6pm EDT Sep 8, 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