Lower Brule, SD Weather & Growing Conditions
Today
66°F
Patchy Fog then Mostly Cloudy
Patchy fog and a slight chance of drizzle before 11am. Mostly cloudy, with a high near 66. North northeast wind 8 to 12 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Patchy Fog then Mostly Cloudy | 8 to 12 mph NNE | 18% |
| Tonight | 53°F | Cloudy | 10 to 14 mph NE | 13% |
| Sunday | 62°F | Rain Showers Likely | 14 mph ENE | 63% |
| Sunday Night | 50°F | Rain Showers | 13 mph ENE | 88% |
| Monday | 62°F | Rain Showers | 12 mph E | 88% |
| Monday Night | 46°F | Mostly Cloudy | 10 mph ESE | 10% |
| Tuesday | 66°F | Partly Sunny | 12 to 17 mph SE | 8% |
| Tuesday Night | 50°F | Mostly Cloudy | 16 mph SE | 14% |
| Wednesday | 70°F | Slight Chance Rain Showers | 16 to 20 mph SE | 19% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 14 to 17 mph SE | 40% |
| Thursday | 73°F | Chance Showers And Thunderstorms | 13 mph SE | 30% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 13 mph SE | 17% |
| Friday | 74°F | Partly Sunny | 12 to 17 mph SE | 12% |
| Friday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 16 mph SE | 17% |
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.