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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Mostly Cloudy

54°F

12°C

Humidity 72%
Wind Speed S 3 mph
Barometer 30.08 in (1016.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 13 May 2:53 am EDT
Extended Forecast for

Mountain Home TN

  • Overnight

    Overnight: Mostly clear, with a low around 54. South wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 75. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 54. South wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 75. West wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 67. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 45. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 57. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Sunday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 90.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 64.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mountain Home TN
 36.3°N 82.35°W (Elev. 1699 ft)
Last Update:
2:26 am EDT May 13, 2026
Forecast Valid:
3am EDT May 13, 2026-6pm EDT May 19, 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