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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

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 41%
Wind Speed Calm
Barometer 30.05 in (1015.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Jun 1:53 pm EDT
Extended Forecast for

Mountain Home TN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. West wind around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. West wind around 5 mph becoming calm.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 85. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 85 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 66. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 66 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 8am. Partly sunny, with a high near 82. Northwest wind around 5 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. West wind around 5 mph.
Tonight
Mostly clear, with a low around 62. West wind around 5 mph becoming calm.
Sunday
Sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 85. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 66. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Tuesday
Showers likely, with thunderstorms also possible after 8am. Partly sunny, with a high near 82. Northwest wind around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 64.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain Home TN
 36.3°N 82.35°W (Elev. 1699 ft)
Last Update:
1:06 pm EDT Jun 20, 2026
Forecast Valid:
2pm EDT Jun 20, 2026-6pm EDT Jun 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