Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Fair

71°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.99 in (1014.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 3:53 am EDT
Extended Forecast for

3 Miles W Chattanooga TN

  • Today

    Today: Sunny and hot, with a high near 96. Heat index values as high as 100. Calm wind.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm.  Mostly sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 95 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 8pm.  Partly cloudy, with a low around 73. West wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny and hot, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 50%.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 93. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 93 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 96. Heat index values as high as 100. Calm wind.
Tonight
Partly cloudy, with a low around 74. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 93. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
Sunny and hot, with a high near 93. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny and hot, with a high near 93.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers. Sunny and hot, with a high near 92.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Chattanooga TN
 35.05°N 85.3°W (Elev. 633 ft)
2:26 am EDT Aug 19, 2026
4am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database