Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Watauga County Hospital Heliport (KTNB)

Lat: 36.2°NLon: 81.65°WElev: 3146ft.

69°F

21°C

Humidity 83%
Wind Speed NA
Barometer 30.12 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 9:15 am EDT
Extended Forecast for

4 Miles SSW Mountain City TN

  • Today

    Today: Sunny, with a high near 82. Calm wind becoming west around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms between 10am and 1pm.  Increasing clouds, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.  Partly cloudy, with a low around 63. West wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 11am.  High near 79. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Low around 62. Calm wind.  Chance of precipitation is 80%.

    Low: 62 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 82. Calm wind becoming west around 5 mph.
Tonight
Mostly clear, with a low around 65. Calm wind.
Thursday
A slight chance of showers and thunderstorms between 10am and 1pm. Increasing clouds, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 63. West wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 79. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 62. Calm wind. Chance of precipitation is 80%.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Mountain City TN
 36.42°N 81.86°W (Elev. 2792 ft)
7:06 am EDT Aug 19, 2026
9am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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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