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

66°F

19°C

Humidity 73%
Wind Speed SW 3 mph
Barometer 30.22 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 5 Mar 9:35 am EST
Extended Forecast for

Watts Bar Dam TN

  • Today

    Today: Partly sunny, with a high near 78. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm.

    Low: 62 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 80 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 57. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 78. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 55. Calm wind.
Friday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm.
Saturday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 57. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 53.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
Showers likely. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
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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 5, 2026
Forecast Valid:
9am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation