Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Light Rain Fog/Mist

58°F

14°C

Humidity 97%
Wind Speed Vrbl 5 mph
Barometer 30.05 in (1017.1 mb)
Dewpoint 57°F (14°C)
Visibility 1.50 mi
Last update 21 Nov 5:53 am EST
Extended Forecast for

3 Miles SSE Tallassee TN

  • Today

    Today: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers after 1pm.  Mostly cloudy, with a high near 72. West wind around 5 mph becoming south in the morning.  Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then showers likely and possibly a thunderstorm after 4am.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 60. South wind around 10 mph becoming west after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 67. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45. North wind around 5 mph becoming calm  after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 63. Calm wind becoming north around 5 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. Calm wind becoming southeast around 5 mph after midnight.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 67. South wind around 5 mph.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Showers.  High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Showers

Detailed Forecast

Today
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers after 1pm. Mostly cloudy, with a high near 72. West wind around 5 mph becoming south in the morning. Chance of precipitation is 40%.
Tonight
A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. South wind around 10 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 45. North wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 63. Calm wind becoming north around 5 mph.
Sunday Night
Mostly clear, with a low around 43. Calm wind becoming southeast around 5 mph after midnight.
Monday
Mostly sunny, with a high near 67. South wind around 5 mph.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 51.
Tuesday
Showers. High near 64. Chance of precipitation is 80%.
Tuesday Night
Showers, with thunderstorms also possible after 1am. Low around 53. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 34.
Thanksgiving Day
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Tallassee TN
 35.51°N 83.93°W (Elev. 1939 ft)
6:06 am EST Nov 21, 2025
6am EST Nov 21, 2025-6pm EST Nov 27, 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