Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

72°F

22°C

Humidity 82%
Wind Speed S 9 mph
Barometer 30.01 in (1014.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 12 Aug 1:53 am EDT
Extended Forecast for

5 Miles SW Walland TN

Flood Watch August 12, 07:00am until August 12, 03:00pm
Click here for hazard details and duration
Flood Watch
  • Overnight

    Overnight: A chance of showers, with thunderstorms also possible after 5am.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly between noon and 1pm.  Mostly sunny, with a high near 88. Heat index values as high as 96. West wind around 5 mph.  New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am.  Mostly cloudy, with a low around 73. Southwest wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind around 5 mph.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny and hot, with a high near 91. South wind around 5 mph becoming west in the afternoon.  Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers before 8pm.  Partly cloudy, with a low around 75. West wind around 5 mph becoming calm.

    Low: 75 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 30%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly between noon and 1pm. Mostly sunny, with a high near 88. Heat index values as high as 96. West wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind around 5 mph. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 75. South wind around 5 mph.
Friday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 91. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 30%.
Friday Night
A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 75. West wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Sunday
Mostly sunny and hot, with a high near 93.
Sunday Night
Mostly clear, with a low around 76.
Monday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Walland TN
 35.69°N 83.89°W (Elev. 1864 ft)
2:41 am EDT Aug 12, 2026
2am EDT Aug 12, 2026-6pm EDT Aug 18, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database