Severe Weather and Heavy Rain from the Mid-South to the Mid-Atlantic; Building Heat in the West

Severe thunderstorms may bring damaging winds, a couple of tornadoes, and heavy rain across portions of the Mid-Atlantic into the Mid-South. Severe storms may produce hail across the northern/central High Plains. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Fire weather concerns continue for Interior Alaska and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Mostly Cloudy

84°F

29°C

Humidity 70%
Wind Speed SW 15 G 25 mph
Barometer 29.95 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 22 Jun 2:35 pm EDT
Extended Forecast for

Powell TN

  • This Afternoon

    This Afternoon: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm.  High near 83. Southwest wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 3am, then a chance of showers after 3am.  Low around 67. South wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind 5 to 10 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. North wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 69. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 8am.  Partly sunny, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 83. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 3am, then a chance of showers after 3am. Low around 67. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 85. Calm wind.
Wednesday Night
Mostly clear, with a low around 65. Calm wind.
Thursday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Powell TN
 36.03°N 84.02°W (Elev. 1001 ft)
2:26 pm EDT Jun 22, 2026
2pm EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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