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Miamisburg, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Miamisburg, a city in Montgomery County, Ohio.

Overnight
63°F
Mostly Cloudy
Mostly cloudy, with a low around 63. East wind around 6 mph.

7-day forecast for Miamisburg

WhenTempForecastWindPrecip
Overnight 63°F Mostly Cloudy 6 mph E 1%
Saturday 87°F Partly Sunny then Showers And Thunderstorms Likely 7 mph SE 64%
Saturday Night 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%

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

Nearby towns & communities

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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.