Blanchester, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blanchester, a village in Clinton County, Ohio.
This Afternoon
75°F
Sunny
Sunny, with a high near 75. South wind around 9 mph.
7-day forecast for Blanchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 9 mph S | 1% |
| Tonight | 60°F | Mostly Cloudy then Showers And Thunderstorms Likely | 8 to 15 mph SE | 60% |
| Wednesday | 66°F | Showers And Thunderstorms | 14 to 18 mph S | 100% |
| Wednesday Night | 51°F | Rain Showers then Mostly Cloudy | 5 to 13 mph SW | 79% |
| Thursday | 65°F | Mostly Sunny | 6 to 13 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 6 mph SW | 1% |
| Friday | 61°F | Partly Sunny | 2 to 8 mph W | 7% |
| Friday Night | 39°F | Partly Cloudy | 7 mph NW | 13% |
| Saturday | 54°F | Mostly Sunny | 7 mph NW | 13% |
| Saturday Night | 34°F | Partly Cloudy | 3 mph NW | 12% |
| Sunday | 56°F | Mostly Sunny | 2 to 8 mph W | 8% |
| Sunday Night | 34°F | Partly Cloudy | 7 mph W | 14% |
| Monday | 58°F | Sunny | 5 to 9 mph W | 14% |
| Monday Night | 37°F | Mostly Clear | 7 mph SW | 12% |
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 Nov 4, 2026.