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.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 20 Aug 5:50 am CDT
Extended Forecast for

4 Miles NNE Watertown TN

  • Today

    Today: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 90. Heat index values as high as 103. West northwest wind around 5 mph becoming southeast in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 88 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. North wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 90. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    High: 90 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.

    Low: 65 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, sunny, with a high near 87. Light north wind becoming north northwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. North wind around 5 mph becoming calm.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 90. Heat index values as high as 103. West northwest wind around 5 mph becoming southeast in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Friday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. North wind around 5 mph becoming calm.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 90. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.
Sunday
Areas of fog before 8am. Otherwise, sunny, with a high near 87. Light north wind becoming north northwest 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Watertown TN
 36.13°N 86.09°W (Elev. 659 ft)
Last Update:
1:31 am CDT Aug 20, 2026
Forecast Valid:
6am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation