Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

71°F

22°C

Humidity 90%
Wind Speed SW 3 mph
Barometer 30.16 in (1020.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 8 Aug 2:53 am EDT
Extended Forecast for

Knoxville TN

  • Overnight

    Overnight: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Partly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 40%.

    High: 90 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73. Southwest wind around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 72. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 71. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. Calm wind.
Monday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 73. Southwest wind around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Wednesday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville TN
 35.98°N 83.97°W (Elev. 1096 ft)
2:26 am EDT Aug 8, 2026
2am EDT Aug 8, 2026-6pm EDT Aug 14, 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