Trotwood, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trotwood, a city in Montgomery County, Ohio.
This Afternoon
85°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 85. 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 for Trotwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Slight Chance Showers And Thunderstorms | 8 mph S | 69% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 8 mph S | 55% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 6 to 10 mph W | 62% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 13 mph N | 63% |
| Monday | 71°F | Chance Rain Showers | 12 to 15 mph NE | 45% |
| Monday Night | 54°F | Chance Rain Showers | 12 to 16 mph NE | 45% |
| Tuesday | 71°F | Slight Chance Rain Showers | 14 mph NE | 19% |
| Tuesday Night | 56°F | Chance Rain Showers | 9 to 15 mph NE | 42% |
| Wednesday | 71°F | Chance Rain Showers | 10 mph NE | 51% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 7 to 14 mph NE | 51% |
| Thursday | 71°F | Mostly Cloudy | 7 to 10 mph N | 12% |
| Thursday Night | 54°F | Mostly Cloudy | 6 to 12 mph N | 11% |
| Friday | 73°F | Mostly Sunny | 7 to 12 mph NE | 9% |
| Friday Night | 52°F | Partly Cloudy | 7 to 13 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Trotwood (39.792, -84.322). Updated through the day.
Growing snapshot for Trotwood
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
189 days
Hardiness zone
6b
More local growing data for Trotwood: nearby ZIP 45426 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Dayton Mcd, Oh (7 mi from Trotwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.