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Hazardous Weather Conditions

Current conditions at

Lebanon Municipal Airport (KM54)

Lat: 36.19°NLon: 86.32°WElev: 588ft.

Fair

81°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Aug 1:10 am CDT
Extended Forecast for

7 Miles SSW Hartsville TN

Heat Advisory August 17, 01:29am until August 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 01:29am until August 17, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms between noon and 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Patchy fog between 3am and 4am. Otherwise, partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph.

    High: 91 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 95. Calm wind.

    High: 95 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Monday
A slight chance of showers and thunderstorms between noon and 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Patchy fog between 3am and 4am. Otherwise, partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 95. Calm wind.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. Calm wind.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. North northwest wind around 5 mph becoming calm.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Hartsville TN
 36.3°N 86.22°W (Elev. 495 ft)
Last Update:
7:06 pm CDT Aug 16, 2026
Forecast Valid:
1am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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