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

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fair

70°F

21°C

Humidity 60%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 May 2:55 am EDT
Extended Forecast for

Afton TN

  • Overnight

    Overnight: Mostly cloudy early, then becoming mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening. 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 then
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 80. Calm wind becoming northwest around 5 mph. Chance of precipitation is 90%.

    High: 80 °F

    Slight Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 64. Southeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 100%.

    High: 79 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy early, then becoming mostly clear, with a low around 65. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening. 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 before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 80. Calm wind becoming northwest around 5 mph. Chance of precipitation is 90%.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 60%.
Friday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 64. Southeast wind around 5 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 100%.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63.
Sunday
A chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 80%.
Memorial Day
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.
Monday Night
Showers and thunderstorms. Low around 63. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Afton TN
 36.22°N 82.77°W (Elev. 1608 ft)
Last Update:
2:26 am EDT May 20, 2026
Forecast Valid:
3am EDT May 20, 2026-6pm EDT May 26, 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