Thunderstorms and Heavy Rain Possible in the Northern and Central Plains and New Mexico; Dangerous Heat Continues

Severe thunderstorms, capable of producing damaging winds and isolated large hail, and heavy rainfall are possible across the northern and central Plains. Monsoonal thunderstorms may produce heavy rainfall and possible flash flooding across New Mexico. Dangerous, long duration heat will continue over much of the central and eastern U.S. Read More >

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

A Few Clouds

88°F

31°C

Humidity 70%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 29 Jul 1:15 pm EDT
Extended Forecast for

4 Miles WSW Knoxville TN

Heat Advisory July 29, 01:35pm until July 30, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 29, 01:35pm until July 30, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 75. North wind around 5 mph becoming calm.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely after 2pm.  Mostly sunny and hot, with a high near 93. Heat index values as high as 102. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Mostly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: 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 90. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 90%.

    High: 90 °F

    Chance
    T-storms then
    T-storms

  • Thursday Night

    Thursday 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 74. West wind around 5 mph becoming calm.  Chance of precipitation is 80%.

    Low: 74 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then showers and thunderstorms likely after 8am.  Partly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 87 °F

    Chance
    Showers then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    T-storms
    Likely then
    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. North wind around 5 mph becoming calm.
Wednesday
Showers and thunderstorms likely after 2pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 102. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
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 90. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 90%.
Thursday 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 74. West wind around 5 mph becoming calm. Chance of precipitation is 80%.
Friday
A slight chance of showers, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Saturday Night
Showers likely 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. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Knoxville TN
 35.94°N 84.03°W (Elev. 974 ft)
1:07 pm EDT Jul 29, 2025
1pm EDT Jul 29, 2025-6pm EDT Aug 4, 2025
 
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Additional Resources

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