Miamisburg, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Miamisburg, a city in Montgomery County, Ohio.
Today
87°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely after 3pm. Partly sunny, with a high near 87. Southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Miamisburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Partly Sunny then Showers And Thunderstorms Likely | 7 mph SE | 64% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 7 mph S | 48% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 6 to 9 mph W | 35% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 53% |
| Monday | 72°F | Rain Showers Likely | 13 mph NE | 58% |
| Monday Night | 56°F | Chance Rain Showers | 12 to 15 mph NE | 43% |
| Tuesday | 71°F | Slight Chance Rain Showers | 13 mph NE | 23% |
| Tuesday Night | 58°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 | 7 to 13 mph NE | 52% |
| Thursday | 71°F | Mostly Cloudy | 7 to 10 mph N | 11% |
| Thursday Night | 56°F | Mostly Cloudy | 6 to 10 mph N | 11% |
| Friday | 72°F | Mostly Sunny | 6 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) for Miamisburg (39.631, -84.271). Updated through the day.
Growing snapshot for Miamisburg
Last spring frost
Apr 17
First fall frost
Oct 26
Growing season
192 days
Hardiness zone
6b
More local growing data for Miamisburg: nearby ZIP 45342 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Dayton Wright Bros Ap, Oh (3.6 mi from Miamisburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.