Harman US

Trotwood, OH Weather & Growing Conditions

This Afternoon
84°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 1pm and 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 84. South wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 84°F Slight Chance Showers And Thunderstorms 8 mph S 69%
Tonight 68°F Showers And Thunderstorms Likely 8 mph S 55%
Sunday 84°F Chance Showers And Thunderstorms 6 to 10 mph W 63%
Sunday Night 59°F Showers And Thunderstorms Likely 13 mph N 63%
Monday 71°F Chance Rain Showers 15 mph NE 44%
Monday Night 55°F Chance Rain Showers 12 to 15 mph NE 44%
Tuesday 71°F Slight Chance Rain Showers 14 mph NE 20%
Tuesday Night 57°F Chance Rain Showers 9 to 14 mph NE 42%
Wednesday 71°F Chance Rain Showers 10 mph NE 51%
Wednesday Night 56°F Chance Showers And Thunderstorms 7 to 13 mph NE 51%
Thursday 71°F Mostly Cloudy 7 to 10 mph N 12%
Thursday Night 55°F Mostly Cloudy 6 to 10 mph N 12%
Friday 72°F Mostly Sunny 7 to 12 mph NE 9%
Friday Night 53°F Partly Cloudy 6 to 12 mph NE 9%

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

Growing snapshot for Trotwood, OH

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

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

Climate data from the nearest NOAA station, Dayton Mcd, Oh (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.