Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Cleveland Regional Jetport (KRZR)

Lat: 35.21°NLon: 84.8°WElev: 860ft.

A Few Clouds

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 22 Aug 8:35 am EDT
Extended Forecast for

Dayton TN

  • Today

    Today: Patchy fog before 10am.  Otherwise, sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 87. Calm wind.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 2am.  Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Mostly sunny, with a high near 87. Calm wind.  Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 62. Calm wind.
Monday
Mostly sunny, with a high near 87. Calm wind.
Monday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 64. Calm wind.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 30%.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton TN
 35.51°N 85.01°W (Elev. 791 ft)
7:06 am EDT Aug 22, 2026
9am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database