Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fair

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 24 Jun 12:15 am EDT
Extended Forecast for

4 Miles ENE Heiskell TN

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, sunny, with a high near 82. Calm wind.

    High: 82 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 71. Southwest wind around 5 mph.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, then showers and thunderstorms likely after 8am.  Partly sunny, with a high near 89. Chance of precipitation is 70%.

    High: 89 °F

    T-storms
    Likely

  • Saturday Night

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

    Low: 70 °F

    T-storms
    Likely

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 58. Calm wind.
Wednesday
Areas of fog before 9am. Otherwise, sunny, with a high near 82. Calm wind.
Wednesday Night
Partly cloudy, with a low around 62. Calm wind.
Thursday
Sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 68. Calm wind.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers, then showers and thunderstorms likely after 8am. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday
Sunny and hot, with a high near 94.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Heiskell TN
 36.14°N 83.98°W (Elev. 942 ft)
7:06 pm EDT Jun 23, 2026
12am EDT Jun 24, 2026-6pm EDT Jun 30, 2026
 
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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