Hillsboro, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsboro, a city in Highland County, Ohio.
Today
86°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 86. Southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Hillsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 mph SE | 27% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 6 mph SE | 55% |
| Sunday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph W | 30% |
| Sunday Night | 59°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 to 12 mph N | 53% |
| Monday | 72°F | Rain Showers Likely | 13 mph NE | 55% |
| Monday Night | 54°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 56% |
| Tuesday | 70°F | Chance Showers And Thunderstorms | 12 mph NE | 46% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 7 to 13 mph NE | 56% |
| Wednesday | 70°F | Rain Showers Likely | 12 mph NE | 61% |
| Wednesday Night | 54°F | Showers And Thunderstorms Likely | 6 to 12 mph NE | 61% |
| Thursday | 70°F | Chance Rain Showers then Mostly Cloudy | 9 mph NE | 25% |
| Thursday Night | 53°F | Mostly Cloudy | 5 to 9 mph NE | 13% |
| Friday | 70°F | Mostly Sunny | 7 to 10 mph NE | 9% |
| Friday Night | 50°F | Partly Cloudy | 6 to 10 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Hillsboro (39.212, -83.611). Updated through the day.
Growing snapshot for Hillsboro
Last spring frost
Apr 24
First fall frost
Oct 20
Growing season
178 days
Hardiness zone
6b
More local growing data for Hillsboro: nearby ZIP 45133 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Good Hope
Greenfield
Highland
Highland Holiday
Leesburg
Lynchburg
Mowrystown
Rocky Fork Point
Sinking Spring
Climate data from the nearest NOAA station, Hillsboro, Oh (5.5 mi from Hillsboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.