Shamrock Colony, SD Weather & Growing Conditions
Overnight
36°F
Light Rain
Rain. Cloudy. Low around 36, with temperatures rising to around 42 overnight. North northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 36°F | Light Rain | 20 mph NNW | 77% |
| Wednesday | 45°F | Light Rain | 15 to 20 mph NW | 90% |
| Wednesday Night | 32°F | Mostly Cloudy | 15 mph NNW | 12% |
| Thursday | 43°F | Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 27°F | Mostly Cloudy | 0 to 10 mph ENE | 0% |
| Friday | 43°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Friday Night | 27°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 53°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 31°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 54°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). 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 Nov 4, 2026.