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.

Mostly Cloudy

80°F

27°C

Humidity 39%
Wind Speed W 5 mph
Barometer 30.10 in (1017.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 May 6:53 pm EDT
Extended Forecast for

Mountain Home TN

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 62. West wind around 5 mph becoming calm.

    Low: 62 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind.

    High: 88 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Calm wind becoming southeast around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Calm wind becoming south around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 62. West wind around 5 mph becoming calm.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind.
Sunday Night
Mostly clear, with a low around 65. Calm wind becoming southeast around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 65. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind becoming south around 5 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 8am. High near 81. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain Home TN
 36.3°N 82.35°W (Elev. 1699 ft)
Last Update:
7:06 pm EDT May 16, 2026
Forecast Valid:
7pm EDT May 16, 2026-6pm EDT May 23, 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