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Unionville Center, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Unionville Center, a village in Union County, Ohio.

This Afternoon
81°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Unionville Center

WhenTempForecastWindPrecip
This Afternoon 81°F Chance Showers And Thunderstorms 7 mph S 49%
Tonight 66°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 7 mph S 67%
Sunday 81°F Showers And Thunderstorms Likely 6 to 10 mph W 67%
Sunday Night 56°F Showers And Thunderstorms Likely 12 mph NE 66%
Monday 68°F Chance Rain Showers 10 to 14 mph NE 45%
Monday Night 52°F Chance Rain Showers 10 to 14 mph NE 36%
Tuesday 68°F Chance Rain Showers 13 mph NE 25%
Tuesday Night 55°F Rain Showers Likely 10 to 14 mph NE 60%
Wednesday 68°F Rain Showers Likely 12 mph E 62%
Wednesday Night 54°F Showers And Thunderstorms Likely 7 to 12 mph NE 62%
Thursday 69°F Slight Chance Rain Showers 8 mph NE 19%
Thursday Night 52°F Mostly Cloudy 5 to 9 mph NE 11%
Friday 70°F Mostly Sunny 5 to 10 mph NE 13%
Friday Night 50°F Partly Cloudy 5 to 10 mph NE 13%

Forecast source: National Weather Service (api.weather.gov) for Unionville Center (40.137, -83.341). Updated through the day.

Growing snapshot for Unionville Center

Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
188 days
Hardiness zone
6a

More local growing data for Unionville Center: nearby ZIP 43077 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Marysville, Oh (5.5 mi from Unionville Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.