Miamisburg, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Miamisburg, a city in Montgomery County, Ohio.
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 5 mph.
7-day forecast for Miamisburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph NE | 0% |
| Tonight | 65°F | Mostly Clear | 3 mph NE | 1% |
| Wednesday | 88°F | Sunny | 1 to 5 mph N | 12% |
| Wednesday Night | 68°F | Partly Cloudy | 1 to 5 mph S | 5% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph SW | 32% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 7 mph SW | 66% |
| Friday | 86°F | Showers And Thunderstorms Likely | 3 to 9 mph SW | 66% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 2 to 7 mph SW | 65% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 30% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 30% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 10 mph SW | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 17% |
| Monday | 90°F | Chance Showers And Thunderstorms | 7 to 12 mph SW | 26% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 32% |
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 Aug 4, 2026.