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De Graff, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for De Graff, a village in Logan County, Ohio.

Overnight
61°F
Rain Showers Likely
Rain showers likely after 3am. Mostly cloudy, with a low around 61. Southeast wind 12 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for De Graff

WhenTempForecastWindPrecip
Overnight 61°F Rain Showers Likely 12 to 15 mph SE 55%
Wednesday 68°F Rain Showers 16 to 20 mph S 99%
Wednesday Night 50°F Rain Showers Likely then Mostly Cloudy 5 to 15 mph SW 57%
Thursday 63°F Mostly Sunny 6 to 15 mph SW 0%
Thursday Night 44°F Partly Cloudy 0 to 7 mph SW 1%
Friday 58°F Mostly Cloudy then Slight Chance Light Rain 0 to 7 mph W 18%
Friday Night 37°F Slight Chance Light Rain 6 mph NW 18%
Saturday 53°F Slight Chance Light Rain 5 to 8 mph NW 20%
Saturday Night 32°F Slight Chance Light Rain then Mostly Cloudy 0 to 3 mph NW 15%
Sunday 56°F Mostly Sunny then Slight Chance Light Rain 0 to 10 mph W 17%
Sunday Night 33°F Slight Chance Light Rain then Partly Cloudy 3 to 7 mph W 17%
Monday 58°F Slight Chance Light Rain 3 to 12 mph W 16%
Monday Night 36°F Slight Chance Light Rain then Mostly Clear 8 mph SW 15%
Tuesday 62°F Mostly Sunny 6 to 12 mph W 4%

Forecast source: National Weather Service (api.weather.gov) for De Graff (40.313, -83.917). Updated through the day.

Growing snapshot for De Graff

Last spring frost
Apr 26
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a

More local growing data for De Graff: nearby ZIP 43318 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Bellefontaine, Oh (7.9 mi from De Graff). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.