Blanchester, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blanchester, a village in Clinton County, Ohio.
Today
84°F
Sunny
Sunny, with a high near 84. Northeast wind around 5 mph.
7-day forecast for Blanchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 5 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 5 mph NE | 3% |
| Wednesday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph N | 28% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 27% |
| Thursday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph SW | 42% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 6 mph S | 53% |
| Friday | 84°F | Showers And Thunderstorms Likely | 3 to 9 mph SW | 68% |
| Friday Night | 66°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 68% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 28% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 28% |
| Sunday | 87°F | Mostly Sunny | 3 to 9 mph SW | 14% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 7 mph SW | 15% |
| Monday | 88°F | Chance Showers And Thunderstorms | 6 to 12 mph SW | 25% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Blanchester (39.295, -83.973). Updated through the day.
Growing snapshot for Blanchester
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
185 days
Hardiness zone
6b
More local growing data for Blanchester: nearby ZIP 45107 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cincinnati, Oh (12.4 mi from Blanchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.