Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 26 Aug 10:55 pm EDT
Extended Forecast for

Decatur TN

  • Tonight

    Tonight: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm.  Patchy fog before 8am.  Otherwise, mostly sunny and hot, with a high near 91. Heat index values as high as 101. Calm wind.  Chance of precipitation is 40%.

    High: 91 °F

    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 5am.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 10am.  Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind.

    High: 90 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 91. Calm wind.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 91.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. Calm wind.
Thursday
A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 91. Heat index values as high as 101. Calm wind. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.
Friday
Areas of fog before 10am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind.
Friday Night
Partly cloudy, with a low around 66. Calm wind.
Saturday
Sunny and hot, with a high near 91. Calm wind.
Saturday Night
Mostly clear, with a low around 68. Calm wind.
Sunday
Sunny and hot, with a high near 91.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur TN
 35.52°N 84.79°W (Elev. 778 ft)
7:06 pm EDT Aug 26, 2026
11pm EDT Aug 26, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

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