College Corner, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for College Corner, a village in Union County, Ohio.
Today
86°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 86. South wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for College Corner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph S | 62% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 mph S | 48% |
| Sunday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 7 mph W | 32% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 50% |
| Monday | 70°F | Rain Showers Likely | 12 mph NE | 57% |
| Monday Night | 53°F | Chance Showers And Thunderstorms | 9 to 14 mph NE | 49% |
| Tuesday | 70°F | Slight Chance Showers And Thunderstorms | 12 mph NE | 22% |
| Tuesday Night | 55°F | Chance Showers And Thunderstorms | 6 to 13 mph NE | 33% |
| Wednesday | 70°F | Chance Rain Showers | 8 mph NE | 37% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 37% |
| Thursday | 70°F | Mostly Cloudy | 5 to 9 mph N | 13% |
| Thursday Night | 53°F | Mostly Cloudy | 5 to 9 mph N | 13% |
| Friday | 71°F | Mostly Sunny | 6 to 9 mph NE | 8% |
| Friday Night | 51°F | Partly Cloudy | 5 to 9 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov) for College Corner (39.569, -84.811). Updated through the day.
Growing snapshot for College Corner
Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
6a
More local growing data for College Corner: nearby ZIP 47003 weather · frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Brookville, In (13.4 mi from College Corner). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.