Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

75°F

24°C

Humidity 90%
Wind Speed W 6 mph
Barometer 29.98 in (1013.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 17 Aug 8:53 pm EDT
Extended Forecast for

Slickrock Wilderness NC

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before midnight.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 65. Light west northwest wind.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 11am.  Mostly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 2pm.  Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms before midnight. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 65. Light west northwest wind. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming north northwest 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 61. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 81. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 66. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 80.
Thursday Night
Mostly cloudy, with a low around 65.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Slickrock Wilderness NC
 35.37°N 83.95°W (Elev. 3209 ft)
6:59 pm EDT Aug 17, 2026
9pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database