August weather in St. Charles, AR
The average temperature in St. Charles in August is 79.9°F (70.1°F–89.7°F). Average precipitation: 2.76 inches.
August is a summer month in St. Charles, and is warmer than the annual average of 61.9°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 17m. For travel, August is hot.
Avg High
89.7°F
Avg Low
70.1°F
Precipitation
2.76 in
Daylight
13h 17m
August records in St. Charles
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (1986) | 59.0°F (1936) | 0.55 in (1986) |
| August 2 | 102.0°F (1943) | 57.9°F (1971) | 0.83 in (1986) |
| August 3 | 102.9°F (1930) | 59.0°F (2014) | 2.10 in (1940) |
| August 4 | 102.9°F (1987) | 59.0°F (1950) | 1.35 in (1975) |
| August 5 | 105.1°F (1964) | 57.0°F (1948) | 2.76 in (1945) |
| August 6 | 102.0°F (1947) | 57.9°F (1974) | 2.02 in (1971) |
| August 7 | 105.1°F (1956) | 60.1°F (1990) | 0.95 in (1970) |
| August 8 | 105.1°F (1930) | 55.0°F (1989) | 1.10 in (1948) |
| August 9 | 105.1°F (1930) | 57.0°F (1990) | 1.41 in (1960) |
| August 10 | 105.1°F (1936) | 57.0°F (1989) | 4.39 in (1970) |
| August 11 | 102.0°F (1947) | 57.9°F (1999) | 1.09 in (1951) |
| August 12 | 104.0°F (1954) | 55.0°F (1967) | 1.41 in (1966) |
| August 13 | 107.1°F (1943) | 54.0°F (1931) | 1.68 in (2013) |
| August 14 | 105.1°F (1943) | 55.0°F (1931) | 1.35 in (1982) |
| August 15 | 104.0°F (1943) | 57.0°F (1963) | 1.57 in (2002) |
| August 16 | 109.0°F (1943) | 54.0°F (1999) | 1.21 in (2008) |
| August 17 | 104.0°F (1954) | 50.0°F (1999) | 2.09 in (1969) |
| August 18 | 102.9°F (1954) | 59.0°F (1943) | 1.51 in (1981) |
| August 19 | 105.1°F (1999) | 48.0°F (1943) | 1.60 in (1941) |
| August 20 | 100.9°F (1995) | 55.9°F (1940) | 1.70 in (2008) |
| August 21 | 102.0°F (1980) | 55.9°F (1940) | 1.59 in (2009) |
| August 22 | 100.9°F (1980) | 55.0°F (1956) | 2.39 in (1951) |
| August 23 | 102.0°F (1983) | 57.0°F (1930) | 1.38 in (1971) |
| August 24 | 104.0°F (1983) | 57.0°F (1930) | 2.50 in (1950) |
| August 25 | 102.9°F (1943) | 57.0°F (1966) | 1.93 in (1967) |
| August 26 | 106.0°F (1943) | 57.0°F (1949) | 1.75 in (2012) |
| August 27 | 107.1°F (1943) | 53.1°F (1945) | 1.12 in (2020) |
| August 28 | 100.9°F (2000) | 54.0°F (1967) | 2.66 in (2020) |
| August 29 | 104.0°F (1954) | 54.0°F (1967) | 1.60 in (1984) |
| August 30 | 102.9°F (2000) | 55.9°F (1946) | 2.29 in (1974) |
| August 31 | 106.0°F (2000) | 51.1°F (1946) | 2.50 in (1944) |