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

91°F

33°C

Humidity 49%
Wind Speed E 8 mph
Barometer 30.17 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 15 Sep 5:15 pm CDT
Extended Forecast for

Smithville TN

Heat Advisory until September 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until September 16, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. Calm wind becoming south around 5 mph in the evening.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 103. South wind around 5 mph becoming calm in the morning.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Calm wind becoming north northwest around 5 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Calm wind becoming north around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 96. Heat index values as high as 99. South wind around 5 mph.
Tonight
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph in the evening.
Wednesday
Sunny, with a high near 96. Heat index values as high as 103. South wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 70. Calm wind.
Thursday
Sunny, with a high near 96. Calm wind becoming north northwest around 5 mph.
Thursday Night
Mostly clear, with a low around 70. Calm wind.
Friday
Sunny, with a high near 95. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 69. Calm wind.
Saturday
Sunny, with a high near 95. Calm wind.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithville TN
 35.96°N 85.83°W (Elev. 1079 ft)
Last Update:
1:31 pm CDT Sep 15, 2026
Forecast Valid:
5pm CDT Sep 15, 2026-6pm CDT Sep 22, 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