Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Tullahoma Regional Airport/William Northern Field (KTHA)

Lat: 35.38°NLon: 86.25°WElev: 1083ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 20 Aug 3:55 am CDT
Extended Forecast for

2 Miles SE Lynchburg TN

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 72. West southwest wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 93. Heat index values as high as 102. North northeast wind around 5 mph becoming south in the morning.

    High: 93 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 11pm.  Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms between 1pm and 3pm.  Mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 89 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 72. West southwest wind around 5 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 93. Heat index values as high as 102. North northeast wind around 5 mph becoming south in the morning.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 11pm. Increasing clouds, with a low around 69. Calm wind.
Friday
A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 87.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Lynchburg TN
 35.27°N 86.33°W (Elev. 1001 ft)
3:50 am CDT Aug 20, 2026
4am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database