Severe Weather and Heavy Rain from the Mid-South to the Mid-Atlantic; Building Heat in the West

Severe thunderstorms may bring damaging winds, a couple of tornadoes, and heavy rain across portions of the Mid-Atlantic into the Mid-South. Severe storms may produce hail across the northern/central High Plains. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Fire weather concerns continue for Interior Alaska and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast and Breezy

84°F

29°C

Humidity 59%
Wind Speed SW 22 G 32 mph
Barometer 29.97 in (1013.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Jun 12:53 pm EDT
Extended Forecast for

5 Miles SW Maryville TN

  • This Afternoon

    This Afternoon: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm.  High near 82. Southwest wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then showers likely.  Low around 67. Southwest wind 5 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers between 11am and 2pm.  Partly sunny, with a high near 81. West wind around 5 mph.

    High: 81 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. North wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming northeast around 5 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Partly cloudy, with a low around 69. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 8am.  Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 82. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 3am, then showers likely. Low around 67. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers between 11am and 2pm. Partly sunny, with a high near 81. West wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 85. Calm wind becoming northeast around 5 mph.
Wednesday Night
Partly cloudy, with a low around 67. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 50%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Saturday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Maryville TN
 35.7°N 84.05°W (Elev. 997 ft)
1:07 pm EDT Jun 22, 2026
1pm EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
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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