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.

Overcast

48°F

9°C

Humidity 40%
Wind Speed W 12 mph
Barometer 30.10 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 17 Jan 6:15 pm EST
Extended Forecast for

Watts Bar Dam TN

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 21. West wind around 5 mph becoming calm in the evening.

    Low: 21 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 36. Calm wind becoming west around 5 mph in the afternoon.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 39. Calm wind becoming west around 5 mph in the morning.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 37. Calm wind.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 17. Calm wind.

    Low: 17 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain showers after 1am, mixing with freezing rain after 5am. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Freezing
    Rain

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 21. West wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 36. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 20. Calm wind.
M.L.King Day
Sunny, with a high near 39. Calm wind becoming west around 5 mph in the morning.
Monday Night
Partly cloudy, with a low around 13. Calm wind.
Tuesday
Sunny, with a high near 37. Calm wind.
Tuesday Night
Clear, with a low around 17. Calm wind.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
A slight chance of rain showers after 1am, mixing with freezing rain after 5am. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Thursday
A slight chance of freezing rain before 7am. Partly sunny, with a high near 45. Chance of precipitation is 10%.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 49.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 32.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watts Bar Dam TN
 35.63°N 84.78°W (Elev. 741 ft)
Last Update:
6:06 pm EST Jan 17, 2026
Forecast Valid:
6pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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