Harman US

Brownstown, IN Weather & Growing Conditions

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

Tonight
68°F
Scattered Showers And Thunderstorms then Partly Cloudy
Scattered showers and thunderstorms before 9pm, then isolated showers and thunderstorms between 9pm and 10pm. Partly cloudy. Low around 68, with temperatures rising to around 70 overnight. East northeast wind 3 to 7 mph. Chance of precipitation is 40%.

7-day forecast for Brownstown

WhenTempForecastWindPrecip
Tonight 68°F Scattered Showers And Thunderstorms then Partly Cloudy 3 to 7 mph ENE 43%
Saturday 92°F Mostly Sunny then Scattered Showers And Thunderstorms 3 to 7 mph S 39%
Saturday Night 72°F Isolated Showers And Thunderstorms 3 mph S 21%
Sunday 92°F Mostly Sunny 3 mph WSW 14%
Sunday Night 66°F Chance Rain Showers 5 mph NNE 34%
Monday 80°F Chance Rain Showers then Chance Showers And Thunderstorms 6 mph NE 50%
Monday Night 60°F Chance Showers And Thunderstorms 5 to 8 mph NE 51%
Tuesday 74°F Chance Showers And Thunderstorms 6 mph NE 46%
Tuesday Night 59°F Chance Showers And Thunderstorms 2 to 8 mph NNE 43%
Wednesday 72°F Mostly Cloudy 5 mph NNE 10%
Wednesday Night 57°F Mostly Cloudy 1 to 5 mph N 7%
Thursday 73°F Partly Sunny 1 to 5 mph N 5%
Thursday Night 58°F Mostly Cloudy 1 to 5 mph NNE 5%
Friday 74°F Mostly Sunny 5 mph NNE 4%

Forecast source: National Weather Service (api.weather.gov) for Brownstown (38.879, -86.048). Updated through the day.

Growing snapshot for Brownstown

Last spring frost
Apr 16
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6b

More local growing data for Brownstown: nearby ZIP 47220 weather · frost dates · planting calendar · Indiana frost dates

Nearby towns & communities

All Indiana locations ›

Climate data from the nearest NOAA station, Seymour 2 N, In (11.1 mi from Brownstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.