National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fog/Mist

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 75°F (24°C)
Visibility 2.00 mi
Last update 5 Jul 2:55 am EDT
Extended Forecast for

Maynardville TN

  • Overnight

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

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind becoming west around 5 mph.

    High: 90 °F

    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.

    High: 88 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 69.

    Low: 69 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind becoming west around 5 mph.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Tuesday
A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Tuesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
Showers and thunderstorms. High near 87. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 70. Chance of precipitation is 80%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Maynardville TN
 36.24°N 83.8°W (Elev. 1178 ft)
Last Update:
2:26 am EDT Jul 5, 2026
Forecast Valid:
3am EDT Jul 5, 2026-6pm EDT Jul 11, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation