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.

Partly Cloudy

88°F

31°C

Humidity 59%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 31 Aug 12:55 pm EDT
Extended Forecast for

Decatur TN

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 94. Heat index values as high as 102. Calm wind.

    High: 94 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Heat index values as high as 104. Calm wind.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 94. Heat index values as high as 102. Calm wind.
Tonight
Mostly clear, with a low around 71. Calm wind.
Tuesday
Sunny and hot, with a high near 95. Heat index values as high as 104. Calm wind.
Tuesday Night
Mostly clear, with a low around 72. Calm wind.
Wednesday
Sunny and hot, with a high near 96. Calm wind.
Wednesday Night
Mostly clear, with a low around 73. Calm wind.
Thursday
Sunny and hot, with a high near 95. Calm wind.
Thursday Night
Mostly clear, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Saturday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur TN
 35.52°N 84.79°W (Elev. 778 ft)
Last Update:
1:06 pm EDT Aug 31, 2026
Forecast Valid:
1pm EDT Aug 31, 2026-6pm EDT Sep 6, 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