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

Widespread Thunderstorms and Showers in the Southeast and Northwest

Widespread showers and thunderstorms may produce isolate instances of flash flooding across the Ozarks and Southeast through Friday. Scattered severe storms and heavy rain is expected across the Northwest U.S.. Gusty winds and low relative humidity will contribute to elevated fire weather over a portion of the northern Plains with a secondary threat in the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 May 10:55 pm EDT
Extended Forecast for

Greeneville TN

  • Tonight

    Tonight: Showers and thunderstorms likely. Increasing clouds, with a low around 63. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 79. West wind around 5 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Calm wind becoming east around 5 mph after midnight.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 80. East wind around 5 mph becoming calm.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 40%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 78. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 58. East wind around 5 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely. Increasing clouds, with a low around 63. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 79. West wind around 5 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 58. Calm wind becoming east around 5 mph after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 80. East wind around 5 mph becoming calm.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 40%.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 78. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 58. East wind around 5 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Tuesday
A 40 percent chance of showers. Mostly sunny, with a high near 76.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Greeneville TN
 36.17°N 82.81°W (Elev. 1598 ft)
Last Update:
7:06 pm EDT May 27, 2026
Forecast Valid:
11pm EDT May 27, 2026-6pm EDT Jun 3, 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