Rapid City Weather in September
September is one of the perfect months to visit Rapid City, with daytime temperatures of 24°C (75°F) and lows of 10°C (50°F) at night. Some rainfall is typical for this time of year.
Rainfall in Rapid City in September
On average, there are about 6 days with rain during this month, averaging 36 mm (1.4 in). When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Rapid City in September
Weather in Rapid City is at its perfect in September. Highs reach 24°C (75°F), while nights settle around 10°C (50°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, August and September typically offer the best weather for Rapid City.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Rapid City's climate page.
Rapid City Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
24°C (75°F)
Chance of Rain
20%
Precipitation
36 mm (1.4 in)
Rainy days
6 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Rapid City in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket.What To Do in Rapid City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Rapid City's climate page.
See the full Rapid City climate overview or explore weather in the United States of America.
