Lower Brule, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lower Brule, a community in Lyman County, South Dakota.
Overnight
52°F
Mostly Cloudy
Mostly cloudy, with a low around 52. Northwest wind around 12 mph.
7-day forecast for Lower Brule
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 12 mph NW | 7% |
| Tuesday | 70°F | Patchy Smoke then Partly Sunny | 7 to 12 mph NW | 8% |
| Tuesday Night | 56°F | Partly Cloudy | 7 mph SW | 1% |
| Wednesday | 79°F | Mostly Sunny | 3 to 12 mph S | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 13 mph S | 5% |
| Thursday | 86°F | Mostly Sunny | 8 to 12 mph S | 5% |
| Thursday Night | 65°F | Mostly Clear | 10 mph S | 5% |
| Friday | 89°F | Sunny | 9 mph SW | 3% |
| Friday Night | 65°F | Mostly Clear | 9 mph ESE | 5% |
| Saturday | 91°F | Sunny | 8 to 17 mph SE | 5% |
| Saturday Night | 66°F | Mostly Clear | 9 to 16 mph E | 8% |
| Sunday | 88°F | Mostly Sunny | 9 to 17 mph E | 6% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 13 to 16 mph E | 33% |
| Monday | 86°F | Chance Showers And Thunderstorms then Partly Sunny | 12 to 16 mph ENE | 33% |
Forecast source: National Weather Service (api.weather.gov) for Lower Brule (44.074, -99.584). Updated through the day.
Growing snapshot for Lower Brule
Last spring frost
May 6
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b
More local growing data for Lower Brule: nearby ZIP 57548 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lake Sharpe Prj, Sd (9.6 mi from Lower Brule). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.