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 >

Hazardous Weather Conditions

Current conditions at

Lee County Airport (K0VG)

Lat: 36.65°NLon: 83.22°WElev: 1411ft.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed NA
Barometer 30.03 in
Dewpoint 72°F (22°C)
Visibility 6.00 mi
Last update 18 Aug 1:15 am EDT
Extended Forecast for

6 Miles NNW Surgoinsville TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 83. Calm wind becoming west around 5 mph.  Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Friday Night

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

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 84. Calm wind.
Wednesday Night
Partly cloudy, with a low around 66. Calm wind.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. Calm wind becoming west around 5 mph. Chance of precipitation is 40%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 65. Calm wind.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 59.
Monday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Surgoinsville TN
 36.56°N 82.9°W (Elev. 2073 ft)
1:06 am EDT Aug 18, 2026
1am 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