Harman US

Lower Brule, SD Weather & Growing Conditions

Today
66°F
Mostly Cloudy
Mostly cloudy, with a high near 66. Northeast wind around 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 66°F Mostly Cloudy 10 mph NE 4%
Tonight 59°F Slight Chance Rain Showers then Cloudy 13 mph NE 19%
Sunday 62°F Rain Showers 14 mph ENE 83%
Sunday Night 51°F Rain Showers 13 mph ENE 90%
Monday 60°F Chance Rain Showers 12 mph E 46%
Monday Night 45°F Mostly Cloudy 9 mph ESE 14%
Tuesday 64°F Mostly Sunny 9 to 15 mph SE 4%
Tuesday Night 50°F Mostly Cloudy 14 to 18 mph SE 10%
Wednesday 67°F Partly Sunny then Slight Chance Rain Showers 21 mph SE 16%
Wednesday Night 54°F Chance Showers And Thunderstorms 20 mph SE 50%
Thursday 74°F Chance Showers And Thunderstorms then Partly Sunny 8 to 16 mph SE 44%
Thursday Night 55°F Partly Cloudy 8 mph ESE 11%
Friday 74°F Partly Sunny 8 to 15 mph SE 10%
Friday Night 58°F Chance Rain Showers 16 mph SE 32%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Lower Brule, SD

Last spring frost
May 6
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b

Explore more for Lower Brule, SD: full frost dates · planting calendar · South Dakota frost dates

Climate data from the nearest NOAA station, Lake Sharpe Prj, Sd (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.