Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

80°F

27°C

Humidity 76%
Wind Speed S 13 G 28 mph
Barometer 30.00 in (1014.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 10 Jul 4:53 pm EDT
Extended Forecast for

4 Miles NNW Louisville TN

Flood Watch July 10, 05:28pm until July 12, 08:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 10, 05:28pm until July 12, 08:00pm

    NOW until 8:00pm Sun

    Flood Watch

  • This Afternoon

    High: 85 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am.  Low around 70. Southwest wind around 5 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    T-storms then
    Showers

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm.  High near 84. Southwest wind 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 84 °F

    Showers then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am.  Low around 70. Southwest wind around 5 mph becoming calm.  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 84. Calm wind.  Chance of precipitation is 80%.

    High: 84 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am.  Low around 69. Calm wind.  Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 84. Calm wind.  Chance of precipitation is 80%.

    High: 84 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    T-storms then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 70. Southwest wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Low around 70. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 84. Calm wind. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Low around 69. Calm wind. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 84. Calm wind. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 68. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Thursday Night
Partly cloudy, with a low around 71.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Louisville TN
 35.88°N 84.06°W (Elev. 899 ft)
2:46 pm EDT Jul 10, 2026
5pm EDT Jul 10, 2026-6pm EDT Jul 17, 2026
 
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Additional Resources

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