Plankinton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plankinton, a city in Aurora County, South Dakota.
Today
72°F
Isolated Rain Showers then Mostly Cloudy
Isolated rain showers before noon. Mostly cloudy, with a high near 72. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Plankinton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Isolated Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 18% |
| Tonight | 53°F | Partly Cloudy | 5 mph WSW | 1% |
| Wednesday | 79°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Wednesday Night | 59°F | Partly Cloudy | 10 to 15 mph S | 2% |
| Thursday | 86°F | Mostly Sunny | 15 to 20 mph S | 7% |
| Thursday Night | 64°F | Mostly Clear | 15 mph S | 7% |
| Friday | 90°F | Sunny | 10 to 15 mph SSW | 6% |
| Friday Night | 65°F | Mostly Clear | 10 mph SSE | 7% |
| Saturday | 92°F | Sunny | 10 to 20 mph SSE | 4% |
| Saturday Night | 66°F | Mostly Clear | 15 to 20 mph SE | 9% |
| Sunday | 89°F | Mostly Sunny | 15 mph E | 6% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 mph E | 22% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 22% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 17% |
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 Aug 4, 2026.