Blackhawk, SD Weather & Growing Conditions
Overnight
32°F
Mostly Clear
Mostly clear. Low around 32, with temperatures rising to around 35 overnight. Northwest wind around 8 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 32°F | Mostly Clear | 8 mph NW | 0% |
| Wednesday | 51°F | Partly Sunny | 7 to 10 mph NW | 0% |
| Wednesday Night | 34°F | Partly Cloudy | 5 to 8 mph NW | 0% |
| Thursday | 53°F | Sunny | 5 mph E | 0% |
| Thursday Night | 35°F | Partly Cloudy | 6 mph SW | 0% |
| Friday | 53°F | Mostly Sunny | 1 to 8 mph NW | 1% |
| Friday Night | 37°F | Mostly Clear | 2 to 7 mph W | 0% |
| Saturday | 59°F | Sunny | 3 to 9 mph NW | 0% |
| Saturday Night | 37°F | Mostly Clear | 7 mph W | 0% |
| Sunday | 67°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 44°F | Mostly Clear | 5 to 8 mph W | 0% |
| Monday | 59°F | Sunny | 1 to 6 mph NW | 0% |
| Monday Night | 40°F | Partly Cloudy | 1 to 5 mph W | 0% |
| Tuesday | 61°F | Mostly Sunny | 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blackhawk, SD
Last spring frost
May 10
First fall frost
Oct 5
Growing season
147 days
Hardiness zone
5a
Explore more for Blackhawk, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Rapid City 4Nw, Sd (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.