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

3 Miles ENE Lakesite TN

  • Overnight

    Overnight: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny and hot, with a high near 93. Heat index values as high as 97. Calm wind.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

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

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between 7am and 2pm.  Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind.

    High: 92 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Calm wind.  Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly sunny and hot, with a high near 91. Calm wind.  Chance of precipitation is 60%.

    High: 91 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 91.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 69. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 93. Heat index values as high as 97. Calm wind.
Wednesday Night
Partly cloudy, with a low around 73. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 7am and 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Friday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 91. Calm wind. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Saturday
Mostly sunny and hot, with a high near 91.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Mostly clear, with a low around 67.
Monday
Mostly sunny and hot, with a high near 90.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Lakesite TN
 35.22°N 85.09°W (Elev. 682 ft)
1:06 am EDT Aug 19, 2026
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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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