National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lebanon Municipal Airport (KM54)

Lat: 36.19°NLon: 86.32°WElev: 588ft.

A Few Clouds

97°F

36°C

Humidity 47%
Wind Speed SW 7 mph
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 16 Aug 2:50 pm CDT
Extended Forecast for

8 Miles NNE Watertown TN

Heat Advisory August 16, 07:00pm until August 17, 07:00pm
Extreme Heat Warning August 16, 03:15pm until August 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning August 16, 03:15pm until August 16, 07:00pm

    NOW until 7:00pm Sun

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 110. Calm wind becoming west around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Patchy fog between 3am and 5am. Otherwise, partly cloudy, with a low around 70. North wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    Showers then
    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 91 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 95. Calm wind becoming west around 5 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 98. Heat index values as high as 109. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 74. Calm wind.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 110. Calm wind becoming west around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Patchy fog between 3am and 5am. Otherwise, partly cloudy, with a low around 70. North wind around 5 mph becoming calm in the evening.
Tuesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 68. Calm wind.
Wednesday
Sunny, with a high near 95. Calm wind becoming west around 5 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. 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 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.
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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Watertown TN
 36.2°N 86.09°W (Elev. 600 ft)
Last Update:
1:31 pm CDT Aug 16, 2026
Forecast Valid:
3pm CDT Aug 16, 2026-6pm CDT Aug 22, 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