Average Temperatures for South Dakota in August





Average temperatures for August at cities, towns and parks throughout South Dakota are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Eastern, Central and Western South Dakota.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Eastern South Dakota

Average August temperatures
High °F Low °F Place High °C Low °C
83 57 Aberdeen 28 14
79 57 Brookings 26 14
83 59 Huron 29 15
84 62 Mitchell 29 17
83 61 Sioux Falls 28 16
83 61 Vermillion 29 16
80 58 Watertown 26 14
81 61 Waubay Wildlife Refuge 27 16
85 62 Yankton 29 16

Central South Dakota

Average daily temperatures in August
High °F Low °F Place High °C Low °C
85 60 Academy 29 16
84 59 Mobridge 29 15
86 62 Pickstown 30 17
87 59 Pierre 30 15

Western South Dakota

August temperatures: daily averages
High °F Low °F Place High °C Low °C
79 55 Custer 26 13
82 54 Deadwood 28 12
87 55 Hot Springs 31 13
91 60 Interior 33 16
81 55 Lead 27 13
86 57 Lemmon 30 14
78 58 Mt. Rushmore National Memorial 25 14
78 49 Pactola Reservoir Dam 26 9
88 55 Porcupine 31 13
85 56 Rapid City 30 13
83 56 Spearfish 28 13
84 55 Wind Cave National Park 29 13
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

South Dakota Temperatures
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