National Weather Service Forecast for: Lebanon TN
Issued by: National Weather Service Nashville, TN
Updated: 11:52 am CDT Jul 28, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 114. West northwest wind around 10 mph, with gusts as high as 20 mph.
Chance
Showers
 Tonight

Tonight: A 30 percent chance of showers, mainly before 10pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening.
Chance
Showers then
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 90. Light north wind increasing to 5 to 10 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Clear

 Thursday

Thursday: Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the morning.
Sunny

 Thursday
Night
Thursday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Friday

Friday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 89. Calm wind.
Patchy Fog
then Mostly
Sunny
 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Calm wind.
Mostly Cloudy
then Chance
Showers
 Saturday

Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Light south southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 60%.
Showers
Likely
Hi 97 °F Lo 71 °F Hi 90 °F Lo 64 °F Hi 87 °F Lo 62 °F Hi 89 °F Lo 69 °F Hi 87 °F

Heat Advisory
 

This Afternoon
 
 A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 114. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
 A 30 percent chance of showers, mainly before 10pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 90. Light north wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 89. Calm wind.
Friday Night
 
 A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Calm wind.
Saturday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Light south southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 60%.
Saturday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Monday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Lebanon TN.