Fort Pierre, SD Weather & Growing Conditions
Today
50°F
Mostly Cloudy
Mostly cloudy, with a high near 50. Northwest wind around 21 mph, with gusts as high as 31 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Mostly Cloudy | 21 mph NW | 0% |
| Tonight | 35°F | Mostly Cloudy | 14 to 17 mph NW | 0% |
| Thursday | 49°F | Patchy Fog then Mostly Sunny | 6 to 14 mph NNW | 0% |
| Thursday Night | 28°F | Partly Cloudy | 7 mph E | 0% |
| Friday | 49°F | Partly Sunny | 6 to 9 mph SE | 0% |
| Friday Night | 31°F | Mostly Clear | 5 to 8 mph S | 0% |
| Saturday | 60°F | Sunny | 8 to 16 mph W | 0% |
| Saturday Night | 35°F | Mostly Clear | 7 to 10 mph W | 0% |
| Sunday | 63°F | Sunny | 7 to 12 mph SSW | 0% |
| Sunday Night | 40°F | Mostly Clear | 10 mph SW | 0% |
| Monday | 62°F | Sunny | 8 to 14 mph NW | 0% |
| Monday Night | 36°F | Mostly Clear | 7 mph WNW | 0% |
| Tuesday | 60°F | Mostly Sunny | 6 to 10 mph S | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 8 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Pierre, SD
Last spring frost
May 6
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b
Explore more for Fort Pierre, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Oahe Dam, Sd (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.