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

73°F

23°C

Humidity 87%
Wind Speed Calm
Barometer 30.01 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 1:53 am EDT
Extended Forecast for

2 Miles S Signal Mountain TN

  • Overnight

    Overnight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm.  Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.

    High: 92 °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 72. West wind around 5 mph becoming calm  in the evening.

    Low: 72 °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 90. Calm wind becoming west around 5 mph.  Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Calm wind.
Wednesday
Sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind.
Wednesday Night
Partly cloudy, with a low around 73. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind becoming east 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 72. 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 90. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.
Friday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Saturday
Sunny and hot, with a high near 90.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A 20 percent chance of showers. Sunny, with a high near 89.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 69.
Tuesday
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:
2 Miles S Signal Mountain TN
 35.1°N 85.35°W (Elev. 965 ft)
2:26 am EDT Aug 19, 2026
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

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