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

Severe Thunderstorms and Heavy Rainfall Today from the Central Plains into the Tennessee Valley

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into portions of the Southeast today. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys today. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fair

77°F

25°C

Humidity 89%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Jul 7:15 pm EDT
Extended Forecast for

Erwin TN

Flood Watch July 11, 07:25pm until July 13, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 11, 07:25pm until July 13, 02:00am

    NOW until 2:00am Mon

    Flood Watch

  • Tonight

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 82. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 66. Calm wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 80. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 66. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 66 °F

    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 82. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 66. Calm wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 80. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 66. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Erwin TN
 36.14°N 82.42°W (Elev. 1726 ft)
Last Update:
7:06 pm EDT Jul 11, 2026
Forecast Valid:
7pm EDT Jul 11, 2026-6pm EDT Jul 18, 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