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.
Today
75°F
Patchy Smoke then Mostly Sunny
Patchy smoke before 11am. Mostly sunny, with a high near 75. Northwest wind 7 to 12 mph.
7-day forecast for Fort Pierre
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Smoke then Mostly Sunny | 7 to 12 mph NW | 3% |
| Tonight | 57°F | Partly Cloudy | 7 mph S | 1% |
| Wednesday | 85°F | Mostly Sunny | 3 to 9 mph SSW | 1% |
| Wednesday Night | 62°F | Partly Cloudy | 7 to 10 mph S | 5% |
| Thursday | 92°F | Sunny | 8 mph SSW | 5% |
| Thursday Night | 65°F | Mostly Clear | 5 to 8 mph SE | 2% |
| Friday | 94°F | Sunny | 5 to 9 mph NW | 1% |
| Friday Night | 65°F | Mostly Clear | 9 mph ESE | 2% |
| Saturday | 97°F | Sunny | 9 to 15 mph ENE | 2% |
| Saturday Night | 65°F | Mostly Clear | 7 to 14 mph E | 9% |
| Sunday | 93°F | Mostly Sunny | 7 to 16 mph E | 5% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 10 to 16 mph E | 35% |
| Monday | 91°F | Chance Showers And Thunderstorms then Mostly Sunny | 12 to 16 mph ENE | 35% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 12 to 16 mph ENE | 25% |
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 Aug 4, 2026.