Severe Weather and Heavy Rainfall from the High Plains to the Ohio Valley; Heat Continuing in the Central Plains and Southeast

A stationary front will be the focus for daily showers and thunderstorms capable of widely scattered flash flooding and severe weather from the High Plains to the Ohio Valley. Monsoonal thunderstorms could cause local flash flooding across the Southwest and the Great Basin. Dangerous heat continues across the Central Plains and Southeast. Many areas will see their hottest temperatures of the year. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

79°F

26°C

Humidity 72%
Wind Speed SE 6 mph
Barometer 30.05 in (1016.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Aug 12:53 pm EDT
Extended Forecast for

Walland TN

Flood Watch August 12, 01:48pm until August 13, 08:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 12, 01:48pm until August 13, 08:00am

    NOW until 8:00am Thu

    Flood Watch

  • This Afternoon

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming northeast after midnight.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Chance
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 89. Heat index values as high as 96. South wind around 5 mph.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny and hot, with a high near 91. West wind around 5 mph.  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 74. Calm wind.

    Low: 74 °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 93. Calm wind.

    High: 93 °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 74.

    Low: 74 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 88. Heat index values as high as 95. West wind around 5 mph.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 89. Heat index values as high as 96. South wind around 5 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 74. 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. West wind around 5 mph. Chance of precipitation is 30%.
Friday Night
A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 74. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93. Calm wind.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.
Sunday
Mostly sunny and hot, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
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:
Walland TN
 35.72°N 83.8°W (Elev. 1499 ft)
1:26 pm EDT Aug 12, 2026
1pm 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