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.

Overcast

72°F

22°C

Humidity 94%
Wind Speed S 5 mph
Barometer 30.00 in (1014.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 3:53 am EDT
Extended Forecast for

5 Miles NW High Rocks NC

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 60. North wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly sunny, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 64. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 60. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. Light and variable wind.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 64.
Friday
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 79. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW High Rocks NC
 35.54°N 83.71°W (Elev. 4190 ft)
2:24 am EDT Aug 18, 2026
3am EDT Aug 18, 2026-6pm EDT Aug 24, 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