Harmony, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Harmony, a town in Clay County, Indiana.

Tonight

70°F

Mostly Cloudy

Mostly cloudy, with a low around 70. East southeast wind 3 to 7 mph.

7-day forecast for Harmony

When	Temp	Forecast	Wind	Precip
Tonight	70°F	Mostly Cloudy	3 to 7 mph ESE	11%
Sunday	88°F	Mostly Sunny then Chance Showers And Thunderstorms	3 to 7 mph SSW	31%
Sunday Night	62°F	Chance Showers And Thunderstorms	10 mph NE	64%
Monday	74°F	Chance Showers And Thunderstorms then Showers And Thunderstorms Likely	12 mph ENE	60%
Monday Night	57°F	Showers And Thunderstorms Likely then Chance Showers And Thunderstorms	8 to 13 mph ENE	60%
Tuesday	71°F	Chance Showers And Thunderstorms	12 mph NE	43%
Tuesday Night	55°F	Chance Showers And Thunderstorms	5 to 12 mph NNE	43%
Wednesday	71°F	Slight Chance Showers And Thunderstorms then Partly Sunny	5 to 9 mph NNE	16%
Wednesday Night	55°F	Mostly Cloudy	2 to 9 mph N	6%
Thursday	73°F	Partly Sunny	3 to 8 mph N	2%
Thursday Night	56°F	Mostly Cloudy	2 to 8 mph NNE	4%
Friday	75°F	Partly Sunny	3 to 8 mph NNE	4%
Friday Night	54°F	Partly Cloudy	2 to 8 mph NE	3%
Saturday	77°F	Mostly Sunny	2 to 7 mph NE	2%

Forecast source: National Weather Service (api.weather.gov) for Harmony (39.534, -87.073). Updated through the day.

Growing snapshot for Harmony

Last spring frost

Apr 27

First fall frost

Oct 15

Growing season

169 days

More local growing data for Harmony: nearby ZIP 47853 weather · frost dates · planting calendar · Indiana frost dates

Nearby towns & communities

Billtown Bowling Green Brazil Center Point Clay City Cloverland Coalmont Cory Knightsville Lewis Middlebury Saline City Staunton

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Climate data from the nearest NOAA station, Greencastle 1 W, In (12.8 mi from Harmony). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.