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

Isolated Severe Storms in the Midwest; Fire Weather Concerns in the Northern Plains; Record Heat in the West

Isolated severe storms are possible across parts of the Florida Peninsula and the Great Lakes to Lower Missouri Valley and south-central Plains late this afternoon and early evening. Elevated to critical fire weather concerns continue over much of the northern Great Plains. Above average temperatures persist across portions of the West today. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

A Few Clouds

69°F

21°C

Humidity 26%
Wind Speed S 3 mph
Barometer 30.21 in (1021.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 12 May 12:53 pm EDT
Extended Forecast for

Mountain Home TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. Calm wind becoming west around 5 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light south wind increasing to 5 to 10 mph after midnight.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 49. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 65. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Sunny

  • Thursday Night

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

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 74. Calm wind becoming west around 5 mph.
Tonight
Mostly clear, with a low around 54. Light south wind increasing to 5 to 10 mph after midnight.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. West wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 49. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 65. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 45. Northwest wind 5 to 10 mph becoming light in the evening.
Friday
Sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 62.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Monday
A 30 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 82.37°W (Elev. 1900 ft)
Last Update:
7:06 am EDT May 12, 2026
Forecast Valid:
1pm EDT May 12, 2026-6pm EDT May 18, 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