Weather · Rapid City, United States
Rapid City Weather in August
Rapid City in August runs 25°C / 16°C with 84mm of rain, one of the best months to visit.
Avg high
25°C
77°F
Avg low
16°C
61°F
Rainfall
84mm
#4 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Rapid City builds it around the season for you.