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.

Partly Cloudy

88°F

31°C

Humidity 66%
Wind Speed SW 9 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Aug 1:50 pm CDT
Extended Forecast for

7 Miles SSE Castalian Springs TN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 100. West southwest wind around 5 mph becoming north northwest.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. North wind around 5 mph becoming calm.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Fog
    then Areas
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

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

    Low: 66 °F

    Partly Cloudy
    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 4am. Otherwise, mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 87 °F

    Patchy 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: A 20 percent chance of showers. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.

    High: 87 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 100. West southwest wind around 5 mph becoming north northwest.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. North wind around 5 mph becoming calm.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. 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 northwest 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 4am. Otherwise, mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming calm.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 89.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Castalian Springs TN
 36.3°N 86.27°W (Elev. 535 ft)
Last Update:
1:31 pm CDT Aug 20, 2026
Forecast Valid:
2pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation