National Weather Service Forecast for: Greeneville, TN
Issued by: National Weather Service Morristown, TN
Updated: Tue, 15-Sep-2026 7:06am EDT
 
Today

Today: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Friday

Friday: Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And T-Storms
Saturday

Saturday: Sunny then Chance Showers And Thunderstorms
Sunny then Chance Showers And T-Storms
Sunday

Sunday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Monday

Monday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
 
Hi 90 °F Hi 90 °F Hi 91 °F Hi 90 °F Hi 90 °F Hi 88 °F Hi 85 °F  
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Friday
Night
Friday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Monday
Night
Monday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
 
Lo 65 °F Lo 66 °F Lo 66 °F Lo 66 °F Lo 67 °F Lo 66 °F Lo 63 °F  

 

Today
 
Mostly sunny, with a high near 90. South wind 0 to 5 mph.
Tonight
 
Mostly clear, with a low around 65. Southeast wind 0 to 10 mph.
Wednesday
 
Mostly sunny, with a high near 90. North wind 0 to 5 mph.
Wednesday Night
 
Mostly clear, with a low around 66. Southeast wind 0 to 5 mph.
Thursday
 
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. West wind 0 to 5 mph. Chance of precipitation is 20%.
Thursday Night
 
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. East wind 0 to 5 mph. Chance of precipitation is 20%.
Friday
 
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 90. North wind 0 to 5 mph. Chance of precipitation is 20%.
Friday Night
 
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Saturday
 
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
 
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
 
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
 
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 85. Chance of precipitation is 60%.
Monday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 63.

 

Forecast from NOAA-NWS for Greeneville, TN.