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.

Fair

95°F

35°C

Humidity 44%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 17 Sep 1:50 pm CDT
Extended Forecast for

Watertown TN

Heat Advisory September 17, 02:06pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 02:06pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 104. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. Calm wind becoming west around 5 mph.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 95. South wind around 5 mph becoming west in the afternoon.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 103. North wind around 5 mph.
Tonight
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 104. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 71. Calm wind.
Saturday
Sunny, with a high near 96. Calm wind becoming west around 5 mph.
Saturday Night
Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph.
Sunday
Sunny, with a high near 95. South wind around 5 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 70. South wind around 5 mph.
Monday
Mostly sunny, with a high near 95. South wind around 5 mph becoming northwest in the afternoon.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown TN
 36.09°N 86.12°W (Elev. 699 ft)
Last Update:
1:31 pm CDT Sep 17, 2026
Forecast Valid:
2pm CDT Sep 17, 2026-6pm CDT Sep 23, 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