Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

A Few Clouds

74°F

23°C

Humidity 94%
Wind Speed S 3 mph
Barometer 30.00 in (1014.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Aug 4:53 am EDT
Extended Forecast for

Harrison TN

  • Today

    Today: Mostly sunny and hot, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 69. North wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94. Calm wind.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am.  Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 2pm.  Mostly sunny and hot, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Calm wind.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 92. Calm wind becoming west around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

Today
Mostly sunny and hot, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 69. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 94. Calm wind.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 2am. Mostly clear, with a low around 73. Calm wind.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny and hot, with a high near 94. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming west around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71.
Saturday
Mostly sunny and hot, with a high near 92.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny and hot, with a high near 92.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrison TN
 35.14°N 85.15°W (Elev. 856 ft)
2:26 am EDT Aug 18, 2026
5am EDT Aug 18, 2026-6pm EDT Aug 24, 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