Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

84°F

29°C

Humidity 58%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 18 Aug 7:55 pm EDT
Extended Forecast for

3 Miles NE Copperhill TN

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 64. Northwest wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, sunny and hot, with a high near 90. Calm wind becoming north around 5 mph.

    High: 90 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 91. Heat index values as high as 95. Calm wind becoming northwest around 5 mph.

    High: 91 °F

    Hot

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Northwest wind around 5 mph becoming calm.
Wednesday
Areas of fog before 9am. Otherwise, sunny and hot, with a high near 90. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly clear, with a low around 67. Calm wind.
Thursday
Mostly sunny and hot, with a high near 91. Heat index values as high as 95. Calm wind becoming northwest around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.
Friday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 62.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Copperhill TN
 35.04°N 84.34°W (Elev. 1693 ft)
7:06 pm EDT Aug 18, 2026
8pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
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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