Harman US

Defiance, OH Weather & Growing Conditions

Overnight
62°F
Chance Rain Showers
A chance of rain showers after 3am. Mostly cloudy, with a low around 62. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

7-day forecast

WhenTempForecastWindPrecip
Overnight 62°F Chance Rain Showers 15 to 20 mph S 47%
Wednesday 69°F Rain Showers 15 to 20 mph S 81%
Wednesday Night 50°F Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 39%
Thursday 60°F Mostly Cloudy 10 to 15 mph SW 9%
Thursday Night 45°F Mostly Cloudy then Chance Rain Showers 5 to 10 mph W 27%
Friday 54°F Chance Rain Showers 5 to 10 mph NW 43%
Friday Night 37°F Chance Rain Showers then Mostly Cloudy 5 to 10 mph NW 27%
Saturday 52°F Partly Sunny 5 to 10 mph NW 10%
Saturday Night 33°F Partly Cloudy 5 mph W 2%
Sunday 55°F Sunny then Slight Chance Rain Showers 5 to 15 mph W 7%
Sunday Night 34°F Slight Chance Rain Showers then Mostly Clear 5 to 10 mph W 7%
Monday 58°F Sunny 5 to 10 mph SW 2%
Monday Night 38°F Partly Cloudy 5 to 10 mph SW 1%
Tuesday 61°F Sunny 5 to 10 mph W 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Defiance, OH

Last spring frost
Apr 22
First fall frost
Oct 24
Growing season
183 days
Hardiness zone
6a

Explore more for Defiance, OH: full frost dates · planting calendar · Ohio frost dates

Climate data from the nearest NOAA station, Defiance, Oh (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.