Shamrock Colony, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shamrock Colony, a community in Beadle County, South Dakota.
Overnight
35°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 35, with temperatures rising to around 40 overnight. North northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Shamrock Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Rain Showers Likely | 15 to 20 mph NNW | 66% |
| Wednesday | 45°F | Rain Showers | 15 to 20 mph NW | 81% |
| Wednesday Night | 32°F | Mostly Cloudy | 15 mph NNW | 14% |
| Thursday | 43°F | Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 27°F | Mostly Cloudy | 0 to 10 mph ENE | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Friday Night | 27°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 54°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 31°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 10 mph SSW | 0% |
| Sunday Night | 36°F | Mostly Clear | 5 to 10 mph S | 0% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 34°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Shamrock Colony (44.621, -97.965). Updated through the day.
Growing snapshot for Shamrock Colony
Last spring frost
May 5
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b
More local growing data for Shamrock Colony: nearby ZIP 57322 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Alpena
Broadland
Cavour
Hitchcock
Huron
Huron Colony
Morningside
Riverside Colony
Virgil
Wolsey
Yale
Climate data from the nearest NOAA station, Clark No2, Sd (20.2 mi from Shamrock Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.