Lebanon, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Boone County, Indiana.
Today
81°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 81. East wind around 2 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Fog then Sunny | 2 mph E | 0% |
| Tonight | 61°F | Mostly Clear | 1 mph E | 0% |
| Wednesday | 82°F | Sunny | 0 to 3 mph SSW | 0% |
| Wednesday Night | 65°F | Partly Cloudy | 0 to 3 mph SSW | 11% |
| Thursday | 81°F | Chance Showers And Thunderstorms | 3 to 7 mph SSW | 61% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 61% |
| Friday | 81°F | Scattered Showers And Thunderstorms | 2 to 6 mph SSW | 34% |
| Friday Night | 65°F | Scattered Showers And Thunderstorms | 5 mph SW | 34% |
| Saturday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 6 mph SSW | 20% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SSW | 20% |
| Sunday | 84°F | Mostly Sunny | 6 to 12 mph SW | 10% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SW | 16% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms | 12 mph SW | 18% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 9 mph SW | 34% |
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 Aug 4, 2026.