Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed SW 10 mph
Barometer 29.97 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 5 Sep 2:15 pm EDT
Extended Forecast for

4 Miles S Powell TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. Southwest wind around 10 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 4am.  Increasing clouds, with a low around 67. South wind around 5 mph becoming west in the evening.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers and thunderstorms likely before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 75. Southeast wind around 5 mph becoming northwest in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before 8pm.  Mostly cloudy, with a low around 58. North wind around 5 mph.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 76. North wind around 5 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Northeast wind around 5 mph.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77. Northeast wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. Southwest wind around 10 mph.
Tonight
Showers and thunderstorms likely, mainly before 4am. Increasing clouds, with a low around 67. South wind around 5 mph becoming west in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms likely before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 75. Southeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 58. North wind around 5 mph.
Sunday
Sunny, with a high near 76. North wind around 5 mph.
Sunday Night
Mostly clear, with a low around 53. Northeast wind around 5 mph.
Monday
Sunny, with a high near 77. Northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Powell TN
 35.96°N 84.02°W (Elev. 1099 ft)
1:31 pm EDT Sep 5, 2025
2pm EDT Sep 5, 2025-6pm EDT Sep 11, 2025
 
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Additional Resources

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