Lebanon, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Wilson County, Tennessee.
This Afternoon
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 103. North northwest wind around 5 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 5 mph NNW | 9% |
| Tonight | 72°F | Mostly Clear | 0 to 5 mph ENE | 12% |
| Saturday | 99°F | Sunny | 0 to 5 mph WNW | 13% |
| Saturday Night | 72°F | Partly Cloudy | 0 to 5 mph SSE | 10% |
| Sunday | 98°F | Mostly Sunny | 5 mph SW | 4% |
| Sunday Night | 72°F | Partly Cloudy | 5 mph S | 4% |
| Monday | 96°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 28% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph ESE | 51% |
| Tuesday | 89°F | Showers And Thunderstorms Likely | 0 to 10 mph W | 59% |
| Tuesday Night | 64°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 59% |
| Wednesday | 83°F | Chance Rain Showers | 5 mph N | 31% |
| Wednesday Night | 61°F | Chance Rain Showers | 0 to 5 mph N | 25% |
| Thursday | 80°F | Mostly Sunny | 5 to 10 mph N | 12% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph NNE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Lebanon (36.199, -86.345). Updated through the day.
Growing snapshot for Lebanon
Last spring frost
Apr 16
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
7b
More local growing data for Lebanon: nearby ZIP 37090 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gladeville, Tn (7.5 mi from Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.