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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

81°F

27°C

Humidity 48%
Wind Speed Vrbl 5 mph
Barometer 30.01 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Jun 4:15 pm EDT
Extended Forecast for

4 Miles NE Watts Bar Dam TN

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    High: 86 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 72. South wind around 5 mph.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Watts Bar Dam TN
 35.65°N 84.75°W (Elev. 741 ft)
Last Update:
2:26 pm EDT Jun 20, 2026
Forecast Valid:
4pm EDT Jun 20, 2026-6pm EDT Jun 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