Severe Storms in the Upper Midwest; Heavy Rain in the Mid-Atlantic; Widespread Heat in the Southwest

Severe storms with damaging winds, large hail, and locally heavy rain will impact portions of the Upper Midwest. A lingering front will bring another round of heavy showers and thunderstorms to the Mid-Atlantic. Excessive heat continues in the South Plains to the Southwest, and fire weather threats remain Critical across the Great Basin, Northern Rockies, and into the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

79°F

26°C

Humidity 74%
Wind Speed NE 7 mph
Barometer 30.02 in (1015.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Aug 10:53 pm EDT
Extended Forecast for

Knoxville TN

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. Calm wind.

    Mostly Cloudy

    Low: 72 °F

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 3pm.  Patchy fog between 9am and 10am.  Otherwise, partly sunny and hot, with a high near 91. Heat index values as high as 98. Calm wind becoming northwest 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.

    Patchy Fog
    then T-storms
    Likely

    High: 91 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely, mainly before 9pm.  Mostly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Chance
    Showers

    Low: 72 °F

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 9am.  Mostly cloudy, with a high near 86. Calm wind.  Chance of precipitation is 70%.

    T-storms
    Likely

    High: 86 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly before 9pm.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 70%.

    T-storms
    Likely then
    Chance
    Showers

    Low: 71 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am.  Partly sunny, with a high near 85. Chance of precipitation is 70%.

    Showers
    Likely

    High: 85 °F

  • Saturday
    Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms after 9pm.  Partly cloudy, with a low around 70. Chance of precipitation is 70%.

    Showers
    Likely then
    Chance
    Showers

    Low: 70 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 87.

    Chance
    Showers

    High: 87 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly before 9pm.  Partly cloudy, with a low around 68.

    Chance
    Showers then
    Slight Chance
    T-storms

    Low: 68 °F

Detailed Forecast

Tonight
Mostly cloudy, with a low around 72. Calm wind.
Thursday
Showers and thunderstorms likely, mainly after 3pm. Patchy fog between 9am and 10am. Otherwise, partly sunny and hot, with a high near 91. Heat index values as high as 98. Calm wind becoming northwest 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.
Thursday Night
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, mainly after 9am. Mostly cloudy, with a high near 86. Calm wind. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 70. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Click Map For Forecast
Point Forecast:
Knoxville TN
 35.98°N 83.94°W (Elev. 942 ft)
9:26 pm EDT Aug 12, 2020
11pm EDT Aug 12, 2020-6pm EDT Aug 19, 2020
 
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Additional Resources

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