Harman US

Dayton, OH Weather & Growing Conditions

Today
86°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 86. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 86°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 7 mph S 68%
Tonight 68°F Chance Showers And Thunderstorms 7 mph S 56%
Sunday 85°F Chance Showers And Thunderstorms 5 to 9 mph W 39%
Sunday Night 59°F Showers And Thunderstorms Likely 10 to 14 mph NE 58%
Monday 72°F Rain Showers Likely 13 mph NE 59%
Monday Night 55°F Chance Rain Showers 10 to 15 mph NE 42%
Tuesday 71°F Slight Chance Rain Showers 10 to 14 mph NE 22%
Tuesday Night 57°F Chance Rain Showers 9 to 15 mph NE 42%
Wednesday 71°F Chance Rain Showers 10 mph NE 52%
Wednesday Night 57°F Chance Showers And Thunderstorms 6 to 13 mph NE 52%
Thursday 72°F Mostly Cloudy 6 to 10 mph NE 13%
Thursday Night 55°F Mostly Cloudy 6 to 10 mph N 12%
Friday 73°F Mostly Sunny 6 to 12 mph NE 8%
Friday Night 53°F Partly Cloudy 5 to 12 mph NE 8%

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 (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.