Rapid City, SD Weather & Growing Conditions
Overnight
30°F
Mostly Clear
Mostly clear. Low around 30, with temperatures rising to around 35 overnight. Northwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Mostly Clear | 7 mph NW | 0% |
| Wednesday | 55°F | Partly Sunny | 7 to 14 mph N | 0% |
| Wednesday Night | 34°F | Partly Cloudy | 5 to 10 mph NW | 0% |
| Thursday | 55°F | Sunny | 2 to 6 mph E | 0% |
| Thursday Night | 35°F | Partly Cloudy | 6 mph SW | 0% |
| Friday | 56°F | Mostly Sunny | 2 to 10 mph NW | 1% |
| Friday Night | 37°F | Mostly Clear | 3 to 7 mph W | 0% |
| Saturday | 62°F | Sunny | 5 to 12 mph NW | 0% |
| Saturday Night | 37°F | Mostly Clear | 7 mph W | 0% |
| Sunday | 69°F | Sunny | 7 mph SW | 0% |
| Sunday Night | 44°F | Mostly Clear | 8 mph W | 0% |
| Monday | 61°F | Sunny | 2 to 8 mph NW | 0% |
| Monday Night | 39°F | Partly Cloudy | 2 to 6 mph W | 0% |
| Tuesday | 63°F | Mostly Sunny | 6 mph S | 0% |
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 Nov 4, 2026.