Lower Brule, SD Weather & Growing Conditions
Today
70°F
Patchy Smoke then Partly Sunny
Patchy smoke before noon. Partly sunny, with a high near 70. West northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Patchy Smoke then Partly Sunny | 5 to 10 mph WNW | 6% |
| Tonight | 55°F | Partly Cloudy | 3 to 7 mph SSW | 0% |
| Wednesday | 80°F | Mostly Sunny | 3 to 9 mph SSW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 8 to 13 mph S | 5% |
| Thursday | 87°F | Sunny | 9 mph S | 5% |
| Thursday Night | 64°F | Mostly Clear | 9 mph S | 5% |
| Friday | 90°F | Sunny | 7 mph SW | 3% |
| Friday Night | 65°F | Mostly Clear | 9 mph ESE | 4% |
| Saturday | 92°F | Sunny | 7 to 16 mph SE | 4% |
| Saturday Night | 65°F | Mostly Clear | 8 to 14 mph E | 8% |
| Sunday | 88°F | Mostly Sunny | 8 to 15 mph E | 6% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 14 mph E | 35% |
| Monday | 87°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 14 mph ENE | 35% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 14 mph ENE | 21% |
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 Aug 4, 2026.