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

Lebanon Municipal Airport (KM54)

Lat: 36.19°NLon: 86.32°WElev: 588ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Aug 6:50 am CDT
Extended Forecast for

South Carthage TN

  • Today

    Today: Sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the morning.

    High: 91 °F

    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. South southeast wind around 5 mph becoming calm.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the morning.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 68. Calm wind.
Wednesday
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 69. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the morning.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. South southeast wind around 5 mph becoming calm.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 71.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
South Carthage TN
 36.24°N 85.97°W (Elev. 597 ft)
Last Update:
4:52 am CDT Aug 4, 2026
Forecast Valid:
7am CDT Aug 4, 2026-6pm CDT Aug 10, 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