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

57°F

14°C

Humidity 72%
Wind Speed SW 5 mph
Barometer 30.35 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 3 Mar 10:15 am EST
Extended Forecast for

Watts Bar Dam TN

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 69. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. South wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the morning.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. South wind around 5 mph becoming calm.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Slight Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 69. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 51. South wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 56. Calm wind.
Thursday
Partly sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 56. South wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 60.
Saturday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Sunday
Showers likely. Cloudy, with a high near 75. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Monday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
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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 am EST Mar 3, 2026
Forecast Valid:
10am EST Mar 3, 2026-6pm EDT Mar 9, 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