World Resorts USA Rapid City Weather

Rapid City weather in August

Weather in Rapid City: August

Average day temperature: 84.1°F
Average night temperature: 64.4°F
Number of sunny days: 22 days
Day length: 13.3 - 14.6 hours
Number of rainy days: 1 day
Precipitation totals: 0.5 in.

Air temperature in August, °F

Show year:
2024
2023
2022

The highest day temperature during August of 2024 was 99°F. At the same time the lowest night temperature was 50°F. Day and night temperature averages during August were 82.9°F and 64.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are sunny but cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Rapid City in August is 0.5 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 7.9 mph It makes August one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 10.9.

Best time for vacation in Rapid City

Sunniest months:
September 24 days
August 22 days
July 20 days
Warmest months:
July 85.4 °F
August 84.1 °F
September 77.0 °F
Coldest months:
February 32.7 °F
January 33.0 °F
December 34.9 °F
Rainiest months:
April 2 days
May 2 days
June 2 days
Windiest months:
April 10.2 mph
December 9.1 mph
November 8.9 mph

Rapid City on a weather map

Rapid City
+43°F
NW 8 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
+46°F
+50°F
+75°F
+75°F
+45°F
+57°F
+75°F
+70°F
+46°F
+54°F
+55°F
+70°F
+68°F
+66°F
+34°F
24 Hours Forecast
Rapid City
Local time: 11:15
November 21, thursday
1200
43°F
NW
8 mph
1500
50°F
NW
9 mph
1800
45°F
NW
6 mph
2100
39°F
NW
6 mph
November 22, friday
0000
37°F
N
4 mph
0300
39°F
S
2 mph
0600
39°F
SE
4 mph
0900
39°F
S
7 mph
Units of measurement: °C / °F