Lebanon, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Wilson County, Tennessee.
Today
89°F
Sunny
Sunny, with a high near 89. Heat index values as high as 97. North northeast wind 0 to 5 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 0 to 5 mph NNE | 8% |
| Tonight | 69°F | Mostly Clear then Patchy Fog | 0 to 5 mph N | 10% |
| Wednesday | 90°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 17% |
| Thursday | 92°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 22% |
| Thursday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 mph S | 22% |
| Friday | 92°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph SSW | 35% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 35% |
| Saturday | 91°F | Chance Showers And Thunderstorms | 5 mph SSW | 54% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 34% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 34% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 22% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 22% |
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 Aug 4, 2026.