Rapid City, SD Weather & Growing Conditions
Today
74°F
Areas Of Smoke then Mostly Sunny
Areas of smoke before noon. Mostly sunny, with a high near 74. Northeast wind 2 to 8 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Areas Of Smoke then Mostly Sunny | 2 to 8 mph NE | 5% |
| Tonight | 54°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 9 mph SW | 16% |
| Wednesday | 84°F | Sunny | 2 to 8 mph S | 5% |
| Wednesday Night | 58°F | Mostly Clear | 7 mph S | 2% |
| Thursday | 93°F | Sunny | 3 to 9 mph N | 2% |
| Thursday Night | 63°F | Mostly Clear | 6 to 9 mph NW | 1% |
| Friday | 97°F | Sunny | 6 to 12 mph NE | 2% |
| Friday Night | 66°F | Mostly Clear | 6 to 12 mph S | 1% |
| Saturday | 98°F | Sunny | 8 to 14 mph N | 2% |
| Saturday Night | 65°F | Mostly Clear | 6 to 14 mph N | 3% |
| Sunday | 96°F | Mostly Sunny | 6 to 16 mph SE | 9% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 6 to 16 mph N | 19% |
| Monday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 15 mph NE | 18% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 5 to 15 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rapid City, SD
Last spring frost
May 3
First fall frost
Oct 8
Growing season
157 days
Hardiness zone
5b
Explore more for Rapid City, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Rapid City Wfo, Sd (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.