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.

Partly Cloudy

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 21 Sep 3:35 am EDT
Extended Forecast for

3 Miles W Watts Bar Dam TN

  • Overnight

    Overnight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 100. Calm wind.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind.

    High: 88 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 81. Calm wind. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Low around 62. Calm wind. Chance of precipitation is 80%.

    Low: 62 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 58. Chance of precipitation is 10%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 70. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 100. Calm wind.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 68. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind.
Tuesday Night
Showers and thunderstorms likely before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 81. Calm wind. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Low around 62. Calm wind. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 50%.
Thursday Night
A slight chance of thunderstorms before 8pm. Mostly clear, with a low around 58. Chance of precipitation is 10%.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Watts Bar Dam TN
 35.61°N 84.83°W (Elev. 801 ft)
Last Update:
2:26 am EDT Sep 21, 2026
Forecast Valid:
3am EDT Sep 21, 2026-6pm EDT Sep 27, 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