Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

74°F

23°C

Humidity 91%
Wind Speed S 8 mph
Barometer 29.91 in (1011.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 6 Sep 4:53 am EDT
Extended Forecast for

5 Miles SSW Maryville TN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm.  Mostly sunny and hot, with a high near 92. Heat index values as high as 101. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 92 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Northeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Showers likely and possibly a thunderstorm, mainly after 2pm.  Partly sunny, with a high near 88. Heat index values as high as 95. Calm wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Partly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm.  Partly cloudy, with a low around 67. Southeast wind around 5 mph.  Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 90. Calm wind.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Calm wind becoming south around 5 mph after midnight.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 101. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 70. Northeast wind around 5 mph.
Labor Day
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 88. Heat index values as high as 95. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 67. Southeast wind around 5 mph. Chance of precipitation is 60%.
Tuesday
Sunny and hot, with a high near 90. Calm wind.
Tuesday Night
Partly cloudy, with a low around 66. Calm wind becoming south around 5 mph after midnight.
Wednesday
Sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Maryville TN
 35.67°N 84°W (Elev. 997 ft)
2:26 am EDT Sep 6, 2026
5am EDT Sep 6, 2026-6pm EDT Sep 12, 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