Harman US

Dayton, OH Weather & Growing Conditions

Tonight
62°F
Mostly Cloudy then Showers And Thunderstorms Likely
A chance of rain showers between 2am and 4am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. South wind 12 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 62°F Mostly Cloudy then Showers And Thunderstorms Likely 12 to 15 mph S 65%
Wednesday 70°F Showers And Thunderstorms 14 to 17 mph S 100%
Wednesday Night 51°F Chance Rain Showers 6 to 13 mph SW 36%
Thursday 67°F Mostly Sunny 6 to 13 mph SW 0%
Thursday Night 46°F Partly Cloudy 2 to 7 mph W 1%
Friday 62°F Partly Sunny 2 to 9 mph NW 10%
Friday Night 40°F Partly Cloudy 6 to 9 mph NW 12%
Saturday 56°F Slight Chance Light Rain 8 mph NW 18%
Saturday Night 36°F Partly Cloudy 2 to 6 mph W 10%
Sunday 59°F Mostly Sunny 2 to 10 mph W 13%
Sunday Night 35°F Partly Cloudy 5 to 10 mph W 13%
Monday 61°F Slight Chance Light Rain 5 to 12 mph W 15%
Monday Night 39°F Mostly Clear 7 to 10 mph SW 12%
Tuesday 65°F Sunny 7 to 12 mph W 3%

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

Growing snapshot for Dayton, OH

Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
189 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, Dayton Mcd, Oh (0.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.