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

Hazardous Weather Conditions

Current conditions at

Sparta Upper Cumberland Regional Airport (KSRB)

Lat: 36.06°NLon: 85.53°WElev: 1024ft.

Fair

86°F

30°C

Humidity 79%
Wind Speed SW 7 mph
Barometer 30.03 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 12 Aug 11:35 am CDT
Extended Forecast for

Smithville TN

Heat Advisory August 12, 11:56am until August 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 12, 11:56am until August 16, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Today

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Heat index values as high as 103. West southwest wind around 5 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 74. South southwest wind around 5 mph.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 95. West southwest wind around 5 mph.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Calm wind becoming west around 5 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Heat index values as high as 103. West southwest wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 74. South southwest wind around 5 mph.
Friday
Mostly sunny, with a high near 95. West southwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 75. Calm wind.
Saturday
Sunny, with a high near 95. Calm wind becoming west around 5 mph.
Saturday Night
Partly cloudy, with a low around 75. Calm wind.
Sunday
Sunny and hot, with a high near 97. South wind around 5 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithville TN
 35.96°N 85.83°W (Elev. 1079 ft)
Last Update:
11:21 am CDT Aug 12, 2026
Forecast Valid:
11am CDT Aug 12, 2026-6pm CDT Aug 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