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

Areas of Excessive Rainfall and Severe Thunderstorms Friday

Heavy thunderstorms may bring areas of excessive rainfall and locally considerable flooding over parts of the Ozarks into the lower-Mississippi River Valley Friday and Saturday. Scattered severe thunderstorms may occur Friday from Montana into the central Plains, with hail and corridors of damaging winds possible. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fair

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 13 Jun 7:35 am EDT
Extended Forecast for

Knoxville TN

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Southwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 70. Southwest wind around 5 mph. Chance of precipitation is 80%.

    Low: 70 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 69. Southwest wind around 5 mph. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 85. Southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    Showers then
    T-storms
    Likely

  • Monday Night

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

    Low: 70 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    Showers then
    T-storms
    Likely

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. Calm wind.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. Southwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 70. Southwest wind around 5 mph. Chance of precipitation is 80%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 69. Southwest wind around 5 mph. Chance of precipitation is 80%.
Monday
A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 85. Southwest wind around 5 mph. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Juneteenth
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville TN
 35.98°N 83.94°W (Elev. 942 ft)
Last Update:
7:16 am EDT Jun 13, 2025
Forecast Valid:
7am EDT Jun 13, 2025-6pm EDT Jun 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation