August weather in Belle Fourche, SD
The average temperature in Belle Fourche in August is 71.7°F (56.8°F–86.6°F). Average precipitation: 1.50 inches.
August is a summer month in Belle Fourche, and is warmer than the annual average of 47.9°F. Daily temperatures swing about 29.8°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 52m. For travel, August is a comfortable month to visit.
Avg High
86.6°F
Avg Low
56.8°F
Precipitation
1.50 in
Daylight
13h 52m
August records in Belle Fourche
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1926) | -52.1°F (1950) | 0.85 in (1915) |
| August 2 | 102.9°F (1918) | 39.9°F (1917) | 1.09 in (2000) |
| August 3 | 105.1°F (1934) | 41.0°F (1910) | 2.04 in (1953) |
| August 4 | 102.9°F (1931) | 35.1°F (1996) | 0.44 in (1986) |
| August 5 | 102.9°F (1964) | 39.0°F (1917) | 1.14 in (1983) |
| August 6 | 104.0°F (1961) | 41.0°F (1945) | 1.57 in (1960) |
| August 7 | 108.0°F (1975) | 37.9°F (1921) | 0.80 in (2020) |
| August 8 | 107.1°F (1975) | 41.0°F (1939) | 0.69 in (1979) |
| August 9 | 104.0°F (1958) | 36.0°F (1917) | 0.83 in (2019) |
| August 10 | 107.1°F (1957) | 37.0°F (1931) | 0.98 in (1974) |
| August 11 | 108.0°F (1969) | 39.9°F (1917) | 1.12 in (1973) |
| August 12 | 106.0°F (1931) | 36.0°F (1964) | 1.10 in (1966) |
| August 13 | 102.0°F (1970) | 23.0°F (1938) | 0.81 in (1950) |
| August 14 | 107.1°F (1935) | 42.1°F (1959) | 0.77 in (1945) |
| August 15 | 102.0°F (1909) | 39.9°F (1959) | 1.00 in (1923) |
| August 16 | 100.9°F (2003) | 43.0°F (1919) | 0.73 in (2018) |
| August 17 | 102.9°F (1934) | 42.1°F (1919) | 1.30 in (1912) |
| August 18 | 104.0°F (2021) | 41.0°F (1995) | 1.47 in (2015) |
| August 19 | 102.9°F (1948) | 39.9°F (1916) | 0.92 in (1972) |
| August 20 | 100.0°F (1976) | 36.0°F (1950) | 3.70 in (1923) |
| August 21 | 100.0°F (1959) | 37.0°F (1917) | 1.43 in (2018) |
| August 22 | 106.0°F (2010) | 39.9°F (1916) | 1.71 in (1973) |
| August 23 | 104.0°F (2010) | 37.9°F (1966) | 0.84 in (2007) |
| August 24 | 102.9°F (2000) | 30.9°F (1910) | 0.58 in (2014) |
| August 25 | 100.0°F (1926) | 36.0°F (1910) | 0.35 in (1946) |
| August 26 | 100.0°F (1918) | 34.0°F (1910) | 0.66 in (1941) |
| August 27 | 102.0°F (1937) | 37.9°F (1914) | 0.76 in (1957) |
| August 28 | 102.0°F (1924) | 30.9°F (1911) | 0.95 in (2020) |
| August 29 | 102.0°F (2012) | 37.0°F (1911) | 0.62 in (2011) |
| August 30 | 102.9°F (1926) | 35.1°F (1935) | 0.55 in (2003) |
| August 31 | 106.0°F (1954) | 30.0°F (1996) | 0.89 in (1980) |