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

Hazardous Weather Conditions

Current conditions at

Lebanon Municipal Airport (KM54)

Lat: 36.19°NLon: 86.32°WElev: 588ft.

Fair

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 4:50 am CDT
Extended Forecast for

South Carthage TN

Extreme Heat Warning August 15, 05:05am until August 16, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 05:05am until August 16, 07:00pm

    NOW until 7:00pm Sun

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind becoming west southwest around 5 mph in the morning.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm.

    Low: 70 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, sunny, with a high near 93. Calm wind becoming northwest around 5 mph.

    High: 93 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 109. Calm wind becoming west southwest around 5 mph.
Tonight
Mostly clear, with a low around 73. Calm wind.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind becoming west southwest around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm.
Tuesday
Areas of fog before 8am. Otherwise, sunny, with a high near 93. Calm wind becoming northwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 69. Calm wind.
Wednesday
Mostly sunny, with a high near 96. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Carthage TN
 36.24°N 85.95°W (Elev. 600 ft)
Last Update:
1:31 am CDT Aug 15, 2026
Forecast Valid:
5am CDT Aug 15, 2026-6pm CDT Aug 21, 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