Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

72°F

22°C

Humidity 87%
Wind Speed W 6 mph
Barometer 30.03 in (1015.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Aug 9:53 pm EDT
Extended Forecast for

3 Miles NNE Greenback TN

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 2pm and 4pm.  Mostly sunny, with a high near 86. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 87. Heat index values as high as 95. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely before 8pm.  Partly cloudy, with a low around 70. South wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm.  Mostly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm.  Partly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly between 2pm and 4pm. Mostly sunny, with a high near 86. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Calm wind.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Heat index values as high as 95. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers likely before 8pm. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70. Calm wind.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Monday Night
A 10 percent chance of showers. Partly cloudy, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Greenback TN
 35.7°N 84.16°W (Elev. 925 ft)
7:06 pm EDT Aug 4, 2026
10pm EDT Aug 4, 2026-6pm EDT Aug 11, 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