Fort Pierre, SD Weather & Growing Conditions
Today
74°F
Patchy Smoke then Mostly Sunny
Patchy smoke before 11am. Mostly sunny, with a high near 74. Northwest wind 7 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Patchy Smoke then Mostly Sunny | 7 to 12 mph NW | 3% |
| Tonight | 56°F | Partly Cloudy | 6 to 9 mph SSW | 1% |
| Wednesday | 83°F | Mostly Sunny | 7 to 10 mph SW | 1% |
| Wednesday Night | 61°F | Partly Cloudy | 8 to 14 mph S | 5% |
| Thursday | 89°F | Sunny | 7 to 13 mph SSW | 5% |
| Thursday Night | 64°F | Mostly Clear | 7 to 10 mph SE | 2% |
| Friday | 91°F | Sunny | 10 mph NNW | 1% |
| Friday Night | 65°F | Mostly Clear | 10 mph ESE | 2% |
| Saturday | 94°F | Sunny | 10 to 15 mph NE | 2% |
| Saturday Night | 65°F | Mostly Clear | 9 to 13 mph E | 11% |
| Sunday | 90°F | Mostly Sunny | 9 to 17 mph E | 5% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 13 to 17 mph E | 35% |
| Monday | 88°F | Chance Showers And Thunderstorms then Mostly Sunny | 13 to 16 mph ENE | 33% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 16 mph ENE | 24% |
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 Aug 4, 2026.