De Smet, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for De Smet, a city in Kingsbury County, South Dakota.
Today
70°F
Partly Sunny
Partly sunny, with a high near 70. Northwest wind 5 to 10 mph.
7-day forecast for De Smet
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Partly Sunny | 5 to 10 mph NW | 3% |
| Tonight | 53°F | Partly Cloudy | 5 mph SW | 1% |
| Wednesday | 77°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 10 mph SSW | 0% |
| Thursday | 82°F | Sunny | 10 to 15 mph SSW | 4% |
| Thursday Night | 63°F | Mostly Clear | 10 mph S | 5% |
| Friday | 85°F | Sunny | 10 mph SSW | 6% |
| Friday Night | 63°F | Mostly Clear | 5 to 10 mph SSE | 8% |
| Saturday | 86°F | Sunny | 10 to 15 mph SE | 5% |
| Saturday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 19% |
| Sunday | 83°F | Mostly Sunny | 15 mph E | 11% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 15 mph E | 24% |
| Monday | 83°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph E | 24% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov) for De Smet (44.386, -97.550). Updated through the day.
Growing snapshot for De Smet
Last spring frost
May 5
First fall frost
Oct 4
Growing season
151 days
Hardiness zone
4b
More local growing data for De Smet: nearby ZIP 57231 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, De Smet, Sd (1.7 mi from De Smet). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.