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

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

45°F

7°C

Humidity 93%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 27 Feb 9:35 pm EST
Extended Forecast for

Watts Bar Dam TN

  • Tonight

    Tonight: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 69. Calm wind.

    High: 69 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 70 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Cloudy, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 61 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. South wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 69. Calm wind.
Saturday Night
Mostly clear, with a low around 42. Calm wind.
Sunday
Increasing clouds, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 44. Calm wind.
Monday
A 20 percent chance of showers before 1pm. Cloudy, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 45. South wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Cloudy, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watts Bar Dam TN
 35.63°N 84.78°W (Elev. 741 ft)
Last Update:
6:21 pm EST Feb 27, 2026
Forecast Valid:
9pm EST Feb 27, 2026-6pm EST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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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