Harman US

Delaware, OH Weather & Growing Conditions

Overnight
60°F
Chance Light Rain
A chance of rain after 4am. Mostly cloudy, with a low around 60. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 60°F Chance Light Rain 14 mph S 36%
Wednesday 65°F Rain 16 mph S 94%
Wednesday Night 50°F Light Rain Likely then Mostly Cloudy 7 to 16 mph SW 68%
Thursday 62°F Mostly Sunny 7 to 14 mph SW 0%
Thursday Night 44°F Mostly Cloudy 3 to 8 mph SW 2%
Friday 56°F Chance Light Rain 3 to 9 mph W 52%
Friday Night 37°F Chance Light Rain then Mostly Cloudy 10 mph NW 52%
Saturday 52°F Partly Sunny 12 mph NW 13%
Saturday Night 32°F Mostly Cloudy 3 to 7 mph NW 9%
Sunday 56°F Mostly Sunny 5 to 10 mph W 6%
Sunday Night 32°F Mostly Clear 6 to 9 mph W 6%
Monday 58°F Sunny 5 to 9 mph W 3%
Monday Night 35°F Mostly Clear 7 mph SW 2%
Tuesday 62°F Sunny 7 to 10 mph W 1%

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

Growing snapshot for Delaware, OH

Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
188 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, Marysville, Oh (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.