Garretson, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garretson, a city in Minnehaha County, South Dakota.
Tonight
39°F
Rain Showers
Rain showers. Cloudy. Low around 39, with temperatures rising to around 42 overnight. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Garretson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Rain Showers | 15 mph NNW | 96% |
| Wednesday | 45°F | Rain Showers | 15 mph NW | 90% |
| Wednesday Night | 37°F | Rain Showers Likely | 10 to 15 mph NW | 62% |
| Thursday | 45°F | Mostly Cloudy | 10 to 15 mph N | 10% |
| Thursday Night | 31°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 46°F | Partly Sunny | 0 to 5 mph SE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 54°F | Mostly Sunny | 0 to 10 mph WSW | 2% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WNW | 5% |
| Sunday | 56°F | Sunny | 5 to 10 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Garretson (43.715, -96.503). Updated through the day.
Growing snapshot for Garretson
Last spring frost
May 1
First fall frost
Oct 4
Growing season
155 days
Hardiness zone
5a
More local growing data for Garretson: nearby ZIP 57030 weather · frost dates · planting calendar · South Dakota frost dates
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Sioux Falls
Valley Springs
Climate data from the nearest NOAA station, Sioux Falls 14 Nne, Sd (3.9 mi from Garretson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.