South Lebanon, OH Weather & Growing Conditions
This Afternoon
87°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 3pm and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 87. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 60% |
| Tonight | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 mph S | 71% |
| Sunday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 9 mph SW | 45% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph N | 60% |
| Monday | 74°F | Chance Rain Showers | 9 to 13 mph NE | 41% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 9 to 14 mph NE | 41% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 12 mph NE | 29% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 6 to 14 mph NE | 43% |
| Wednesday | 72°F | Chance Rain Showers | 9 mph NE | 51% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 5 to 13 mph NE | 51% |
| Thursday | 72°F | Mostly Cloudy | 5 to 9 mph NE | 11% |
| Thursday Night | 55°F | Mostly Cloudy | 5 to 9 mph NE | 11% |
| Friday | 73°F | Mostly Sunny | 5 to 10 mph NE | 9% |
| Friday Night | 52°F | Partly Cloudy | 5 to 10 mph NE | 9% |
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 Sep 19, 2026.