Millbrook Colony, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millbrook Colony, a community in Hanson County, South Dakota.
Today
72°F
Partly Sunny
Partly sunny, with a high near 72. Northwest wind 5 to 10 mph.
7-day forecast for Millbrook Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Partly Sunny | 5 to 10 mph NW | 13% |
| Tonight | 53°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Wednesday | 79°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 86°F | Mostly Sunny | 10 to 15 mph S | 4% |
| Thursday Night | 63°F | Mostly Clear | 10 to 15 mph S | 5% |
| Friday | 90°F | Sunny | 10 mph SSW | 5% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Saturday | 92°F | Sunny | 5 to 20 mph SSE | 5% |
| Saturday Night | 67°F | Mostly Clear | 10 to 20 mph SE | 11% |
| Sunday | 90°F | Mostly Sunny | 10 to 15 mph SE | 6% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 19% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph ENE | 19% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Millbrook Colony (43.668, -97.871). Updated through the day.
Growing snapshot for Millbrook Colony
Last spring frost
May 8
First fall frost
Sep 29
Growing season
143 days
Hardiness zone
5a
More local growing data for Millbrook Colony: nearby ZIP 57311 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alexandria, Sd (1.7 mi from Millbrook Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.