Shamrock Colony, SD Weather & Growing Conditions
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. Northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 5 to 10 mph NW | 2% |
| Tonight | 52°F | Mostly Clear | 5 mph SW | 0% |
| Wednesday | 79°F | Sunny | 5 to 15 mph S | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 10 to 15 mph SSW | 1% |
| Thursday | 84°F | Sunny | 15 mph S | 4% |
| Thursday Night | 63°F | Mostly Clear | 10 to 15 mph S | 6% |
| Friday | 87°F | Sunny | 10 to 15 mph S | 4% |
| Friday Night | 63°F | Mostly Clear | 10 mph SSE | 5% |
| Saturday | 88°F | Sunny | 10 to 15 mph SE | 5% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 16% |
| Sunday | 85°F | Mostly Sunny | 10 to 15 mph E | 8% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms | 15 mph E | 23% |
| Monday | 84°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 23% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Shamrock Colony, SD
Last spring frost
May 5
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b
Explore more for Shamrock Colony, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Clark No2, Sd (20.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.