Piedmont, SD Weather & Growing Conditions
Tonight
44°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 44, with temperatures rising to around 47 overnight. East wind around 3 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Showers And Thunderstorms | 3 mph E | 88% |
| Sunday | 55°F | Patchy Fog | 5 mph E | 91% |
| Sunday Night | 39°F | Showers And Thunderstorms | 0 to 3 mph NE | 98% |
| Monday | 58°F | Rain Showers Likely | 1 to 6 mph E | 56% |
| Monday Night | 39°F | Chance Rain Showers then Mostly Cloudy | 6 mph S | 32% |
| Tuesday | 69°F | Mostly Sunny | 5 to 10 mph S | 5% |
| Tuesday Night | 45°F | Mostly Clear | 3 to 8 mph S | 8% |
| Wednesday | 75°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph S | 44% |
| Wednesday Night | 47°F | Partly Cloudy | 5 mph SW | 11% |
| Thursday | 78°F | Sunny | 2 to 6 mph N | 4% |
| Thursday Night | 47°F | Mostly Clear | 3 mph S | 6% |
| Friday | 78°F | Mostly Sunny | 3 to 10 mph S | 6% |
| Friday Night | 49°F | Slight Chance Rain Showers | 5 to 8 mph S | 16% |
| Saturday | 76°F | Slight Chance Rain Showers then Sunny | 6 mph SW | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Piedmont, SD
Last spring frost
May 20
First fall frost
Sep 25
Growing season
126 days
Hardiness zone
5a
Explore more for Piedmont, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Johnson Siding, Sd (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.