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Piqua, OH Weather & Growing Conditions

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

Tonight
62°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 3am. Mostly cloudy, with a low around 62. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Piqua

WhenTempForecastWindPrecip
Tonight 62°F Mostly Cloudy then Rain Showers Likely 10 to 15 mph S 59%
Wednesday 68°F Rain Showers 13 to 17 mph S 100%
Wednesday Night 50°F Slight Chance Rain Showers then Mostly Cloudy 6 to 12 mph SW 23%
Thursday 64°F Mostly Sunny 6 to 14 mph SW 0%
Thursday Night 45°F Partly Cloudy 2 to 7 mph SW 1%
Friday 59°F Partly Sunny then Slight Chance Light Rain 2 to 8 mph NW 17%
Friday Night 39°F Slight Chance Light Rain then Mostly Cloudy 8 mph NW 17%
Saturday 54°F Slight Chance Light Rain 8 mph NW 19%
Saturday Night 34°F Partly Cloudy 1 to 5 mph W 10%
Sunday 57°F Mostly Sunny then Slight Chance Light Rain 2 to 10 mph W 15%
Sunday Night 34°F Slight Chance Light Rain then Partly Cloudy 5 to 9 mph W 15%
Monday 59°F Slight Chance Light Rain 5 to 12 mph W 16%
Monday Night 38°F Mostly Clear 9 mph SW 12%
Tuesday 63°F Mostly Sunny 7 to 10 mph W 3%

Forecast source: National Weather Service (api.weather.gov) for Piqua (40.146, -84.244). Updated through the day.

Growing snapshot for Piqua

Last spring frost
Apr 18
First fall frost
Oct 23
Growing season
186 days
Hardiness zone
6a

More local growing data for Piqua: nearby ZIP 45356 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Piqua Wwtp, Oh (2.2 mi from Piqua). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.