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.

Mostly Cloudy

82°F

28°C

Humidity 66%
Wind Speed SW 9 mph
Barometer 30.06 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Sep 11:35 am CDT
Extended Forecast for

6 Miles SSE Castalian Springs TN

  • This Afternoon

    This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 40%.

    High: 94 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. South southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.

    High: 94 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 69. North northwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 90. West southwest wind around 5 mph. Chance of precipitation is 90%.

    High: 90 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 9am. Otherwise, sunny, with a high near 92. Calm wind becoming northwest around 5 mph.

    High: 92 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. South southwest wind around 5 mph becoming calm.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 69. North northwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 90. West southwest wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
A 20 percent chance of showers before 1am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 68. Calm wind.
Sunday
Areas of fog before 9am. Otherwise, sunny, with a high near 92. Calm wind becoming northwest around 5 mph.
Sunday Night
Mostly clear, with a low around 67. Calm wind.
Monday
Sunny, with a high near 94. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Tuesday Night
A 30 percent chance of showers. Mostly clear, with a low around 68.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Castalian Springs TN
 36.3°N 86.27°W (Elev. 535 ft)
Last Update:
10:36 am CDT Sep 10, 2026
Forecast Valid:
12pm CDT Sep 10, 2026-6pm CDT Sep 16, 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