Plankinton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plankinton, a city in Aurora County, South Dakota.
This Afternoon
48°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 48, with temperatures falling to around 44 in the afternoon. North northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Plankinton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Chance Rain Showers | 20 mph NNW | 27% |
| Tonight | 36°F | Chance Rain Showers | 15 to 20 mph NW | 36% |
| Wednesday | 46°F | Rain Showers Likely | 15 to 20 mph NW | 70% |
| Wednesday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 15 mph NW | 25% |
| Thursday | 48°F | Partly Sunny | 10 to 15 mph NNW | 3% |
| Thursday Night | 28°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Friday | 48°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Friday Night | 29°F | Partly Cloudy | 5 mph SSW | 0% |
| Saturday | 58°F | Sunny | 5 to 10 mph WSW | 4% |
| Saturday Night | 34°F | Mostly Clear | 10 mph W | 3% |
| Sunday | 60°F | Sunny | 10 mph SW | 0% |
| Sunday Night | 39°F | Mostly Clear | 10 mph SSW | 0% |
| Monday | 61°F | Sunny | 10 to 15 mph WNW | 0% |
| Monday Night | 36°F | Mostly Clear | 5 to 10 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Plankinton (43.715, -98.484). Updated through the day.
Growing snapshot for Plankinton
Last spring frost
May 3
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
5a
More local growing data for Plankinton: nearby ZIP 57368 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, White Lake, Sd (10.9 mi from Plankinton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.