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

Hazardous Weather Conditions

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fog/Mist

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 57°F (14°C)
Visibility 3.00 mi
Last update 10 Mar 2:55 am EDT
Extended Forecast for

Watts Bar Dam TN

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Low around 58. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 3pm. High near 76. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 42. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%.

    Low: 42 °F

    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Partly sunny, with a high near 56. North wind around 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. North wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Low around 58. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms, mainly before 3pm. High near 76. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 62. South wind around 5 mph.
Wednesday
A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 42. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%.
Thursday
A 20 percent chance of showers before 2pm. Partly sunny, with a high near 56. North wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 34. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 49.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Sunday Night
Showers and thunderstorms. Low around 37. Chance of precipitation is 80%.
Monday
A slight chance of rain and snow showers. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.
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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:
2:26 am EDT Mar 10, 2026
Forecast Valid:
3am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation