Interior August Weather

Averages and records for weather in Interior, South Dakota in the month of August.
Typical Interior August Weather
1991–2020
Average daily high 90.5 °F
Average daily low 61.1 °F
Average monthly precipitation 1.8 inches
Average monthly snow none
Daily chance of precipitation 21.0%
Daily chance of snow 0%
Interior August Weather Records
1949–2024
Highest temperature 110 °F August 15, 1988
Lowest temperature 35 °F August 20, 1978
Highest daily low 80 °F August 5, 2022
Lowest daily high 59 °F August 26, 1992
Hottest average high temperature 97.3 °F 1955
Coldest average high temperature 84.4 °F 1993
Most daily precipitation 1.8 inches August 8, 1979
Most monthly precipitation 4.2 inches 2019
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
August 1 91.3 62.8 109 48
August 2 91.1 62.6 107 51
August 3 90.9 62.5 107 42
August 4 90.9 62.3 107 45
August 5 90.8 62.1 107 47
August 6 90.7 61.9 109 50
August 7 90.7 61.8 110 45
August 8 90.6 61.7 106 52
August 9 90.6 61.6 105 50
August 10 90.5 61.5 105 42
August 11 90.6 61.4 109 42
August 12 90.6 61.3 107 40
August 13 90.7 61.3 107 45
August 14 90.6 61.3 106 44
August 15 90.5 61.2 110 48
August 16 90.5 61.1 107 46
August 17 90.4 60.9 106 42
August 18 90.3 60.8 109 47
August 19 90.4 60.7 105 40
August 20 90.4 60.5 108 35
August 21 90.4 60.3 104 45
August 22 90.3 60.2 107 45
August 23 90.1 59.9 104 42
August 24 89.8 59.6 103 44
August 25 89.6 59.3 105 44
August 26 89.4 59.1 109 46
August 27 89.1 58.8 107 45
August 28 88.9 58.6 105 43
August 29 88.7 58.4 109 42
August 30 88.4 58.0 103 42
August 31 88.1 57.7 106 41
Weather Station Details
Years Station Coordinates
1949–2024 Interior 3 Ne location