Summer Heat Continues; Severe Weather For Northeast

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, southern Plains, Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are in the forecast for the Northeast into the northern Mid-Atlantic for damaging winds. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fair

82°F

28°C

Humidity 70%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 20 Aug 8:35 pm EDT
Extended Forecast for

Knoxville TN

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Partly cloudy, with a low around 71. Southwest wind around 5 mph.

    Chance
    T-storms

    Low: 71 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 10am.  Partly sunny and hot, with a high near 91. Heat index values as high as 95. Southwest wind 5 to 10 mph.

    Chance
    T-storms

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 4am.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph.

    Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms before 11am, then a slight chance of thunderstorms between 11am and 2pm, then showers and thunderstorms likely after 2pm.  Partly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 70%.

    T-storms
    Likely

    High: 89 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 72 °F

  • Friday

    Friday: Showers and thunderstorms.  High near 87. Chance of precipitation is 80%.

    T-storms

    High: 87 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 70 °F

  • Saturday

    Saturday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 86. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 86 °F

  • Saturday
    Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Chance
    T-storms

    Low: 70 °F

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 71. Southwest wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny and hot, with a high near 91. Heat index values as high as 95. Southwest wind 5 to 10 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph.
Thursday
A chance of showers and thunderstorms before 11am, then a slight chance of thunderstorms between 11am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
Showers and thunderstorms. High near 87. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
Knoxville TN
 35.98°N 83.94°W (Elev. 942 ft)
2:54 pm EDT Aug 20, 2019
8pm EDT Aug 20, 2019-6pm EDT Aug 27, 2019
 
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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