South Lebanon, OH Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 1 to 5 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 3 mph NE | 1% |
| Wednesday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
| Wednesday Night | 67°F | Partly Cloudy | 0 to 3 mph SE | 12% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 8 mph SW | 30% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph S | 56% |
| Friday | 86°F | Showers And Thunderstorms Likely | 2 to 8 mph SW | 65% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 1 to 6 mph SW | 65% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 1 to 8 mph SW | 30% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 30% |
| Sunday | 89°F | Mostly Sunny | 1 to 9 mph SW | 13% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 16% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 23% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph SW | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Lebanon, OH
Last spring frost
Apr 23
First fall frost
Oct 18
Growing season
177 days
Hardiness zone
6b
Explore more for South Lebanon, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Milford, Oh (13.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.