National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Mostly Cloudy

82°F

28°C

Humidity 74%
Wind Speed NE 10 mph
Barometer 29.99 in (1014.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 20 Aug 10:53 pm EDT
Extended Forecast for

Middle Valley TN

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms, mainly between 1am and 5am. Low around 72. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 69. Northwest wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 92. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 92 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Northwest wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms, mainly between 1am and 5am. Low around 72. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 69. Northwest wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 92. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. Northwest wind around 5 mph becoming calm.
Sunday
Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 89.
Monday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Tuesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Middle Valley TN
 35.18°N 85.18°W (Elev. 699 ft)
Last Update:
7:06 pm EDT Aug 20, 2026
Forecast Valid:
11pm EDT Aug 20, 2026-6pm EDT Aug 27, 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