National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fog/Mist

70°F

21°C

Humidity 94%
Wind Speed SW 5 mph
Barometer 30.06 in
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 13 Aug 6:35 pm EDT
Extended Forecast for

4 Miles NNE Surgoinsville TN

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 2am. Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 8am. Sunny, with a high near 89.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 69. Calm wind.
Friday
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 71. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 2am. Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Surgoinsville TN
 36.53°N 82.82°W (Elev. 1699 ft)
Last Update:
7:06 pm EDT Aug 13, 2026
Forecast Valid:
7pm EDT Aug 13, 2026-6pm EDT Aug 20, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation