Harman US

Celina, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Celina, a city in Mercer County, Ohio.

Tonight
67°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. South wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Celina

WhenTempForecastWindPrecip
Tonight 67°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 7 mph S 60%
Sunday 78°F Showers And Thunderstorms Likely 3 to 12 mph NW 82%
Sunday Night 56°F Showers And Thunderstorms 14 mph NE 78%
Monday 67°F Chance Rain Showers 15 mph NE 46%
Monday Night 52°F Chance Rain Showers 10 to 16 mph NE 46%
Tuesday 67°F Slight Chance Rain Showers 10 to 15 mph NE 22%
Tuesday Night 55°F Chance Rain Showers 9 to 15 mph NE 32%
Wednesday 68°F Chance Rain Showers then Chance Showers And Thunderstorms 10 mph NE 51%
Wednesday Night 54°F Chance Showers And Thunderstorms 7 to 12 mph NE 51%
Thursday 69°F Mostly Cloudy 8 mph NE 12%
Thursday Night 53°F Mostly Cloudy 3 to 8 mph NE 12%
Friday 71°F Partly Sunny 5 to 8 mph NE 8%
Friday Night 51°F Partly Cloudy 3 to 8 mph NE 5%
Saturday 73°F Mostly Sunny 3 to 7 mph NE 4%

Forecast source: National Weather Service (api.weather.gov) for Celina (40.555, -84.561). Updated through the day.

Growing snapshot for Celina

Last spring frost
Apr 27
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
6a

More local growing data for Celina: nearby ZIP 45822 weather · frost dates · planting calendar · Ohio frost dates

Nearby towns & communities

All Ohio locations ›

Climate data from the nearest NOAA station, Celina 3 Ne, Oh (3.4 mi from Celina). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.