Rapid City, SD Weather & Growing Conditions
Today
55°F
Partly Sunny
Partly sunny. High near 55, with temperatures falling to around 49 in the afternoon. North wind 9 to 15 mph, with gusts as high as 30 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 55°F | Partly Sunny | 9 to 15 mph N | 0% |
| Tonight | 33°F | Partly Cloudy | 3 to 12 mph NW | 0% |
| Thursday | 56°F | Sunny | 2 to 6 mph NE | 0% |
| Thursday Night | 32°F | Partly Cloudy | 6 mph S | 0% |
| Friday | 57°F | Mostly Sunny | 2 to 10 mph N | 0% |
| Friday Night | 34°F | Mostly Clear | 2 to 6 mph W | 0% |
| Saturday | 64°F | Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 35°F | Mostly Clear | 6 mph W | 0% |
| Sunday | 69°F | Sunny | 3 to 9 mph S | 0% |
| Sunday Night | 41°F | Mostly Clear | 7 mph W | 0% |
| Monday | 63°F | Sunny | 7 mph N | 0% |
| Monday Night | 37°F | Partly Cloudy | 5 mph W | 0% |
| Tuesday | 64°F | Mostly Sunny | 3 to 7 mph SW | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rapid City, SD
Last spring frost
May 12
First fall frost
Oct 1
Growing season
139 days
Hardiness zone
5a
Explore more for Rapid City, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Rapid City Rgnl Ap, Sd (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.