Lebanon, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Boone County, Indiana.
Tonight
63°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Partly cloudy. Low around 63, with temperatures rising to around 67 overnight. East wind around 9 mph. Chance of precipitation is 20%.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Scattered Showers And Thunderstorms | 9 mph E | 19% |
| Saturday | 84°F | Scattered Showers And Thunderstorms | 6 to 9 mph SSE | 65% |
| Saturday Night | 68°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph SSE | 47% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 7 mph WNW | 47% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 65% |
| Monday | 70°F | Showers And Thunderstorms Likely | 14 mph ENE | 65% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 44% |
| Tuesday | 68°F | Chance Showers And Thunderstorms | 14 mph NE | 31% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 7 to 14 mph NNE | 17% |
| Wednesday | 69°F | Mostly Cloudy | 7 to 10 mph NNE | 5% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph N | 4% |
| Thursday | 70°F | Partly Sunny | 5 to 9 mph N | 4% |
| Thursday Night | 54°F | Mostly Cloudy | 5 to 9 mph NNE | 4% |
| Friday | 71°F | Mostly Sunny | 5 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Lebanon (40.033, -86.448). Updated through the day.
Growing snapshot for Lebanon
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
180 days
Hardiness zone
6a
More local growing data for Lebanon: nearby ZIP 46052 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Whitestown, In (6.6 mi from Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.