Trotwood, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trotwood, a city in Montgomery County, Ohio.
Today
84°F
Sunny
Sunny, with a high near 84. Northeast wind around 5 mph.
7-day forecast for Trotwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 5 mph NE | 0% |
| Tonight | 63°F | Mostly Clear | 3 mph N | 1% |
| Wednesday | 87°F | Sunny | 1 to 5 mph N | 9% |
| Wednesday Night | 66°F | Partly Cloudy | 1 to 5 mph W | 3% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 9 mph SW | 41% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 7 mph SW | 69% |
| Friday | 85°F | Showers And Thunderstorms Likely | 3 to 9 mph SW | 69% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 63% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 31% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 7 mph SW | 31% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph SW | 17% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 18% |
| Monday | 88°F | Chance Showers And Thunderstorms | 8 to 13 mph SW | 26% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 6 to 10 mph SW | 33% |
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
Nearby towns & communities
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Union
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West Carrollton
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 Aug 4, 2026.