Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Cleveland Regional Jetport (KRZR)

Lat: 35.21°NLon: 84.8°WElev: 860ft.

Mostly Cloudy

84°F

29°C

Humidity 70%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 4 Aug 2:55 pm EDT
Extended Forecast for

Dayton TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 88. Heat index values as high as 96. Calm wind.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 4pm and 5pm.  Mostly sunny, with a high near 87. Heat index values as high as 97. Calm wind becoming south around 5 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Mostly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 5am.  Partly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 88 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm.  Partly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm.  Mostly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Heat index values as high as 96. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly between 4pm and 5pm. Mostly sunny, with a high near 87. Heat index values as high as 97. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 5am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton TN
 35.49°N 85.01°W (Elev. 699 ft)
2:26 pm EDT Aug 4, 2026
3pm EDT Aug 4, 2026-6pm EDT Aug 10, 2026
 
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Additional Resources

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