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

46°F

8°C

Humidity 43%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 13 Feb 6:55 pm EST
Extended Forecast for

Watts Bar Dam TN

  • Tonight

    Tonight: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 59. Calm wind becoming southwest around 5 mph.

    High: 59 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers, mainly after 1am. Low around 42. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Slight Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers. High near 54. Calm wind becoming east around 5 mph. Chance of precipitation is 100%.

    High: 54 °F

    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Slight Chance
    Showers

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Calm wind.
Saturday
Increasing clouds, with a high near 59. Calm wind becoming southwest around 5 mph.
Saturday Night
Showers, mainly after 1am. Low around 42. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers. High near 54. Calm wind becoming east around 5 mph. Chance of precipitation is 100%.
Sunday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 46. Calm wind.
Washington's Birthday
Partly sunny, with a high near 65. Calm wind.
Monday Night
Partly cloudy, with a low around 42. Calm wind.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Mostly cloudy, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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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:
6:06 pm EST Feb 13, 2026
Forecast Valid:
7pm EST Feb 13, 2026-6pm EST Feb 20, 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