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 29.99 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 18 Aug 11:35 pm CDT
Extended Forecast for

3 Miles S Lebanon TN

  • Overnight

    Overnight: Clear, with a low around 66. Calm wind.

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, increasing clouds, with a high near 91. Heat index values as high as 97. Calm wind becoming northwest around 5 mph.

    High: 91 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 72. South southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Slight Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 2pm, then a chance of showers after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 88. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.

    High: 88 °F

    Heavy Rain
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 67. North wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 89 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 66. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, increasing clouds, with a high near 91. Heat index values as high as 97. Calm wind becoming northwest around 5 mph.
Wednesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 72. South southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely before 2pm, then a chance of showers after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 88. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 67. North wind around 5 mph becoming calm.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Lebanon TN
 36.17°N 86.31°W (Elev. 643 ft)
Last Update:
10:46 pm CDT Aug 18, 2026
Forecast Valid:
12am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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