Severe Weather and Heavy Rain for the Southern U.S.

A potent storm system will roll across the Southern tier of the U.S. over the next two days. As a result, severe thunderstorms with large hail, damaging winds and a few tornadoes are possible from the southern Plains and Lower Mississippi Valley into the South and Southeast. Also, heavy rain from these thunderstorms may cause some flood concerns, especially in the Lower Mississippi Valley. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

40°F

4°C

Humidity 77%
Wind Speed E 5 mph
Barometer 30.19 in (1022.5 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 23 Apr 7:53 am EDT
Extended Forecast for

Maryville TN

Frost Advisory until April 23, 09:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory until April 23, 09:00am

    NOW until
    9:00am Fri

    Frost Advisory

  • Today

    Today: Mostly cloudy, with a high near 63. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    Mostly Cloudy

    High: 63 °F

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 4am.  Mostly cloudy, with a low around 47. East wind around 5 mph.

    Mostly Cloudy
    then Chance
    Showers

    Low: 47 °F

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 2pm.  High near 66. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Showers

    High: 66 °F

  • Saturday
    Night

    Saturday Night: Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am.  Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Showers
    Likely then
    Slight Chance
    Showers

    Low: 50 °F

  • Sunday

    Sunday: Partly sunny, with a high near 67. North wind around 5 mph.

    Partly Sunny

    High: 67 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 45. East wind around 5 mph.

    Mostly Clear

    Low: 45 °F

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    Sunny

    High: 78 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 53.

    Partly Cloudy

    Low: 53 °F

Detailed Forecast

Today
Mostly cloudy, with a high near 63. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 47. East wind around 5 mph.
Saturday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 66. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 67. North wind around 5 mph.
Sunday Night
Mostly clear, with a low around 45. East wind around 5 mph.
Monday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 62.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Click Map For Forecast
Point Forecast:
Maryville TN
 35.74°N 83.96°W (Elev. 1010 ft)
6:48 am EDT Apr 23, 2021
8am EDT Apr 23, 2021-6pm EDT Apr 29, 2021
 
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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