August weather in Webster, SD
The average temperature in Webster in August is 69.0°F (59.0°F–79.0°F). Average precipitation: 2.97 inches.
August is a summer month in Webster, and is warmer than the annual average of 42.7°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 55m. For travel, August is one of the best months of the year to visit.
Avg High
79.0°F
Avg Low
59.0°F
Precipitation
2.97 in
Daylight
13h 55m
August records in Webster
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.0°F (1955) | 45.0°F (1893) | 1.29 in (2010) |
| August 2 | 100.9°F (1958) | 41.0°F (1971) | 2.94 in (1988) |
| August 3 | 97.0°F (1959) | 37.0°F (1894) | 1.32 in (1998) |
| August 4 | 104.0°F (1959) | 39.9°F (1894) | 1.15 in (1988) |
| August 5 | 98.1°F (1968) | 42.1°F (1974) | 0.50 in (2000) |
| August 6 | 99.0°F (1983) | 43.0°F (1976) | 1.66 in (1964) |
| August 7 | 102.0°F (1893) | 46.0°F (1895) | 3.35 in (2023) |
| August 8 | 100.0°F (1958) | 48.9°F (1964) | 1.75 in (1896) |
| August 9 | 99.0°F (1958) | 43.0°F (1966) | 1.77 in (1994) |
| August 10 | 96.1°F (1971) | 42.1°F (1895) | 1.12 in (1974) |
| August 11 | 100.9°F (1959) | 37.0°F (1893) | 2.50 in (2016) |
| August 12 | 98.1°F (1894) | 39.9°F (1895) | 1.35 in (2006) |
| August 13 | 104.0°F (1965) | 39.9°F (1964) | 2.01 in (1966) |
| August 14 | 99.0°F (1965) | 39.0°F (1979) | 3.95 in (2023) |
| August 15 | 102.0°F (1988) | 39.0°F (1895) | 1.67 in (1977) |
| August 16 | 100.0°F (1988) | 37.9°F (1896) | 1.35 in (1967) |
| August 17 | 100.0°F (1976) | 39.0°F (1895) | 0.81 in (2017) |
| August 18 | 102.0°F (1976) | 43.0°F (1893) | 4.40 in (2009) |
| August 19 | 102.0°F (1976) | 35.1°F (1895) | 2.59 in (1989) |
| August 20 | 100.0°F (1976) | 42.1°F (1895) | 3.02 in (1966) |
| August 21 | 99.0°F (1976) | 44.1°F (2004) | 1.65 in (1996) |
| August 22 | 99.0°F (1894) | 39.9°F (1974) | 1.70 in (2025) |
| August 23 | 98.1°F (1976) | 41.0°F (1987) | 2.63 in (1978) |
| August 24 | 97.0°F (2003) | 39.9°F (1896) | 3.08 in (1955) |
| August 25 | 99.0°F (1895) | 39.9°F (1964) | 1.54 in (1955) |
| August 26 | 97.0°F (1991) | 35.1°F (1896) | 0.60 in (1990) |
| August 27 | 99.0°F (1894) | 33.1°F (1896) | 1.21 in (2021) |
| August 28 | 100.0°F (1984) | 37.0°F (1893) | 2.25 in (2020) |
| August 29 | 98.1°F (1983) | 35.1°F (1893) | 2.81 in (1997) |
| August 30 | 91.9°F (1961) | 37.0°F (1893) | 2.27 in (1971) |
| August 31 | 98.1°F (1894) | 26.1°F (1895) | 1.09 in (2020) |