Blanchester, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blanchester, a village in Clinton County, Ohio.
Tonight
60°F
Partly Cloudy then Patchy Fog
Patchy fog after 5am. Partly cloudy, with a low around 60. East wind around 7 mph.
7-day forecast for Blanchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Partly Cloudy then Patchy Fog | 7 mph E | 2% |
| Saturday | 82°F | Patchy Fog then Chance Rain Showers | 6 mph SE | 36% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph S | 55% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 49% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 10 mph N | 49% |
| Monday | 76°F | Chance Showers And Thunderstorms | 12 mph NE | 45% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 9 to 14 mph NE | 50% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 13 mph NE | 50% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 44% |
| Wednesday | 71°F | Chance Rain Showers | 10 mph NE | 42% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 40% |
| Thursday | 71°F | Partly Sunny | 7 to 10 mph N | 11% |
| Thursday Night | 55°F | Mostly Cloudy | 5 to 9 mph N | 11% |
| Friday | 71°F | Partly Sunny | 6 to 10 mph N | 7% |
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 Sep 19, 2026.