Lake Preston, SD Weather & Growing Conditions
Today
71°F
Partly Sunny
Partly sunny, with a high near 71. Northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Partly Sunny | 10 mph NW | 8% |
| Tonight | 53°F | Partly Cloudy | 5 mph SW | 4% |
| 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 | 62°F | Mostly Clear | 10 mph S | 5% |
| Friday | 85°F | Sunny | 10 mph SSW | 7% |
| Friday Night | 63°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Saturday | 86°F | Sunny | 10 to 15 mph SSE | 5% |
| Saturday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 19% |
| Sunday | 84°F | Mostly Sunny | 10 to 15 mph E | 12% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 25% |
| Monday | 83°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 25% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Preston, SD
Last spring frost
May 5
First fall frost
Oct 4
Growing season
151 days
Hardiness zone
4b
Explore more for Lake Preston, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, De Smet, Sd (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.