Harman US

Defiance, OH Weather & Growing Conditions

This Afternoon
73°F
Showers And Thunderstorms
Showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 73°F Showers And Thunderstorms 5 to 10 mph E 80%
Tonight 64°F Chance Showers And Thunderstorms then Showers And Thunderstorms 0 to 5 mph SE 80%
Sunday 74°F Showers And Thunderstorms 5 to 15 mph N 89%
Sunday Night 53°F Chance Showers And Thunderstorms 10 to 15 mph NE 53%
Monday 67°F Chance Rain Showers 15 mph NE 30%
Monday Night 51°F Slight Chance Rain Showers then Mostly Cloudy 15 mph NE 17%
Tuesday 65°F Slight Chance Rain Showers 15 to 20 mph NE 19%
Tuesday Night 53°F Chance Rain Showers 15 to 20 mph NE 37%
Wednesday 65°F Showers And Thunderstorms Likely 15 mph NE 56%
Wednesday Night 52°F Showers And Thunderstorms Likely 10 to 15 mph NE 56%
Thursday 68°F Partly Sunny 10 mph NE 14%
Thursday Night 51°F Mostly Cloudy 5 to 10 mph NE 10%
Friday 71°F Partly Sunny 5 to 10 mph NE 10%
Friday Night 50°F Partly Cloudy 0 to 5 mph NE 8%

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 Sep 19, 2026.