Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

51°F

11°C

Humidity 89%
Wind Speed SW 3 mph
Barometer 30.15 in (1020.7 mb)
Dewpoint 48°F (9°C)
Visibility 9.00 mi
Last update 20 Nov 6:53 am EST
Extended Forecast for

4 Miles W Walland TN

Dense Fog Advisory until November 20, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until November 20, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Today

    High: 72 °F

    Areas Fog
    then Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers.  Patchy fog between 9pm and 1am. Low around 59. Calm wind becoming southeast around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm.  Mostly cloudy, with a high near 74. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 4am, then showers and possibly a thunderstorm after 4am.  Low around 61. Southwest wind around 10 mph.  Chance of precipitation is 90%.

    Low: 61 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers.  Partly sunny, with a high near 70. West wind around 10 mph.  Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. Calm wind becoming north around 5 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 5pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 72. Calm wind becoming west around 5 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Patchy fog between 9pm and 1am. Low around 59. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 74. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 4am, then showers and possibly a thunderstorm after 4am. Low around 61. Southwest wind around 10 mph. Chance of precipitation is 90%.
Saturday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 70. West wind around 10 mph. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 66. Calm wind becoming north around 5 mph.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 67.
Monday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 52.
Tuesday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 54.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Walland TN
 35.73°N 83.88°W (Elev. 1079 ft)
6:16 am EST Nov 20, 2025
7am EST Nov 20, 2025-6pm EST Nov 26, 2025
 
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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