Fort Pierre, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Pierre, a city in Hughes County, South Dakota.
This Afternoon
72°F
Patchy Fog
Patchy fog. Cloudy, with a high near 72. North northeast wind around 3 mph.
7-day forecast for Fort Pierre
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Patchy Fog | 3 mph NNE | 1% |
| Tonight | 58°F | Patchy Fog | 5 to 8 mph NNE | 4% |
| Saturday | 69°F | Patchy Fog then Cloudy | 7 to 12 mph NE | 11% |
| Saturday Night | 55°F | Chance Rain Showers | 8 to 13 mph ENE | 41% |
| Sunday | 64°F | Rain Showers Likely | 10 to 14 mph ENE | 74% |
| Sunday Night | 52°F | Rain Showers | 8 to 13 mph ENE | 90% |
| Monday | 65°F | Rain Showers | 9 to 13 mph E | 81% |
| Monday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 13 mph ESE | 17% |
| Tuesday | 71°F | Partly Sunny | 12 to 20 mph SE | 11% |
| Tuesday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 20 mph SE | 15% |
| Wednesday | 76°F | Slight Chance Rain Showers | 21 mph SE | 21% |
| Wednesday Night | 56°F | Chance Rain Showers | 10 to 21 mph SE | 28% |
| Thursday | 78°F | Slight Chance Rain Showers then Mostly Sunny | 8 to 12 mph SE | 22% |
| Thursday Night | 57°F | Partly Cloudy | 12 mph ESE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Fort Pierre (44.367, -100.382). Updated through the day.
Growing snapshot for Fort Pierre
Last spring frost
May 6
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
4b
More local growing data for Fort Pierre: nearby ZIP 57501 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oahe Dam, Sd (8 mi from Fort Pierre). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.