Miamisburg, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Miamisburg, a city in Montgomery County, Ohio.
Overnight
62°F
Light Rain
Rain. Cloudy, with a low around 62. South wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Miamisburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Light Rain | 16 mph S | 87% |
| Wednesday | 67°F | Rain | 14 to 18 mph S | 100% |
| Wednesday Night | 51°F | Chance Light Rain then Mostly Cloudy | 6 to 13 mph SW | 40% |
| Thursday | 64°F | Mostly Sunny | 6 to 14 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 to 8 mph SW | 0% |
| Friday | 58°F | Chance Light Rain | 2 to 10 mph W | 36% |
| Friday Night | 38°F | Chance Light Rain then Mostly Cloudy | 7 to 10 mph NW | 36% |
| Saturday | 54°F | Mostly Sunny | 9 mph NW | 2% |
| Saturday Night | 34°F | Partly Cloudy | 2 to 6 mph NW | 0% |
| Sunday | 57°F | Mostly Sunny | 3 to 10 mph W | 3% |
| Sunday Night | 34°F | Mostly Clear | 3 to 8 mph W | 3% |
| Monday | 61°F | Sunny | 3 to 9 mph W | 2% |
| Monday Night | 38°F | Mostly Clear | 7 mph SW | 2% |
| Tuesday | 65°F | Sunny | 6 to 9 mph W | 1% |
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 Nov 4, 2026.