Harman US

Ada, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ada, a village in Hardin County, Ohio.

This Afternoon
75°F
Sunny
Sunny, with a high near 75. South wind around 15 mph.

7-day forecast for Ada

WhenTempForecastWindPrecip
This Afternoon 75°F Sunny 15 mph S 2%
Tonight 62°F Mostly Cloudy then Chance Rain Showers 12 to 18 mph S 42%
Wednesday 68°F Rain Showers 16 to 22 mph S 95%
Wednesday Night 51°F Rain Showers Likely then Mostly Cloudy 9 to 16 mph SW 67%
Thursday 62°F Mostly Sunny 10 to 18 mph SW 1%
Thursday Night 47°F Mostly Cloudy 5 to 9 mph SW 2%
Friday 57°F Chance Light Rain 5 to 9 mph NW 31%
Friday Night 40°F Slight Chance Light Rain 8 mph NW 23%
Saturday 52°F Partly Sunny 9 mph NW 12%
Saturday Night 35°F Partly Cloudy 6 mph W 5%
Sunday 54°F Mostly Sunny 5 to 12 mph W 11%
Sunday Night 36°F Partly Cloudy 9 mph W 12%
Monday 57°F Mostly Sunny 6 to 12 mph W 14%
Monday Night 39°F Partly Cloudy 8 to 12 mph SW 14%

Forecast source: National Weather Service (api.weather.gov) for Ada (40.768, -83.825). Updated through the day.

Growing snapshot for Ada

Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
6a

More local growing data for Ada: nearby ZIP 45810 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Lima Allen Co Ap, Oh (12.3 mi from Ada). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.