Lebanon, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Boone County, Indiana.
This Afternoon
68°F
Cloudy
Cloudy. High near 68, with temperatures falling to around 61 in the afternoon. West southwest wind 13 to 16 mph, with gusts as high as 24 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Cloudy | 13 to 16 mph WSW | 9% |
| Tonight | 46°F | Mostly Cloudy | 7 to 12 mph WSW | 6% |
| Thursday | 60°F | Mostly Cloudy | 9 to 16 mph WSW | 3% |
| Thursday Night | 41°F | Chance Light Rain | 5 to 8 mph W | 32% |
| Friday | 52°F | Slight Chance Light Rain | 8 to 13 mph NNW | 17% |
| Friday Night | 32°F | Partly Cloudy | 6 to 10 mph NW | 11% |
| Saturday | 52°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 29°F | Mostly Clear | 5 mph WNW | 0% |
| Sunday | 57°F | Sunny | 2 to 9 mph W | 0% |
| Sunday Night | 31°F | Mostly Clear | 2 to 6 mph W | 0% |
| Monday | 61°F | Sunny | 2 to 8 mph WSW | 0% |
| Monday Night | 36°F | Clear | 7 mph SW | 0% |
| Tuesday | 63°F | Sunny | 7 mph W | 2% |
| Tuesday Night | 35°F | Mostly Clear | 1 to 5 mph NW | 1% |
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 Nov 4, 2026.