August weather in Box Elder, SD
The average temperature in Box Elder in August is 70.8°F (56.2°F–85.4°F). Average precipitation: 1.59 inches.
August is a summer month in Box Elder, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 29.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 50m. For travel, August is a comfortable month to visit.
Avg High
85.4°F
Avg Low
56.2°F
Precipitation
1.59 in
Daylight
13h 50m
August records in Box Elder
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.0°F (1955) | 42.1°F (2009) | 1.37 in (2025) |
| August 2 | 102.9°F (2024) | 46.9°F (1971) | 1.65 in (1972) |
| August 3 | 102.9°F (2024) | 42.1°F (1978) | 0.95 in (1988) |
| August 4 | 102.9°F (2001) | 45.0°F (1978) | 2.60 in (1982) |
| August 5 | 102.9°F (2022) | 45.0°F (1980) | 1.75 in (2014) |
| August 6 | 104.0°F (1961) | 50.0°F (1989) | 0.51 in (1982) |
| August 7 | 105.1°F (1975) | 45.0°F (1989) | 1.23 in (1979) |
| August 8 | 102.9°F (1992) | 48.0°F (2023) | 0.61 in (2016) |
| August 9 | 102.0°F (1958) | 46.9°F (1967) | 0.96 in (1950) |
| August 10 | 102.9°F (2007) | 43.0°F (2004) | 0.96 in (1954) |
| August 11 | 102.9°F (2006) | 39.9°F (2004) | 1.31 in (1948) |
| August 12 | 105.1°F (1965) | 45.0°F (1964) | 0.90 in (1966) |
| August 13 | 107.1°F (2007) | 43.0°F (2004) | 2.03 in (1997) |
| August 14 | 100.0°F (2003) | 46.9°F (1995) | 1.37 in (2017) |
| August 15 | 106.0°F (1988) | 46.9°F (2023) | 0.69 in (1978) |
| August 16 | 100.9°F (1973) | 45.0°F (1968) | 0.37 in (1994) |
| August 17 | 105.1°F (2021) | 39.0°F (2002) | 1.55 in (2015) |
| August 18 | 104.0°F (1959) | 43.0°F (2002) | 0.62 in (1996) |
| August 19 | 104.0°F (1986) | 41.0°F (1978) | 1.16 in (1985) |
| August 20 | 104.0°F (1973) | 42.1°F (1964) | 0.53 in (1965) |
| August 21 | 99.0°F (1962) | 43.0°F (2021) | 0.92 in (1964) |
| August 22 | 104.0°F (1949) | 37.9°F (1966) | 1.06 in (1983) |
| August 23 | 104.0°F (1949) | 37.9°F (2015) | 0.39 in (2018) |
| August 24 | 102.0°F (2024) | 41.0°F (2015) | 0.86 in (2007) |
| August 25 | 102.9°F (1991) | 42.1°F (1964) | 1.47 in (2022) |
| August 26 | 102.9°F (1991) | 43.0°F (1967) | 1.60 in (2015) |
| August 27 | 102.9°F (1991) | 42.1°F (1992) | 0.88 in (2006) |
| August 28 | 100.0°F (2012) | 41.0°F (2004) | 0.41 in (1990) |
| August 29 | 107.1°F (2012) | 41.0°F (1988) | 1.07 in (2011) |
| August 30 | 102.0°F (1948) | 37.9°F (1992) | 0.50 in (1963) |
| August 31 | 102.9°F (1954) | 37.0°F (2020) | 0.88 in (2014) |