August weather in Mill Creek, IL
The average temperature in Mill Creek in August is 78.2°F (67.0°F–89.4°F). Average precipitation: 3.15 inches.
August is a summer month in Mill Creek, and is warmer than the annual average of 58.5°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 26m. For travel, August is hot.
Avg High
89.4°F
Avg Low
67.0°F
Precipitation
3.15 in
Daylight
13h 26m
August records in Mill Creek
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1897) | 53.1°F (1971) | 2.43 in (1934) |
| August 2 | 104.0°F (1901) | 57.0°F (1920) | 1.88 in (1988) |
| August 3 | 107.1°F (1918) | 51.1°F (1950) | 1.72 in (1975) |
| August 4 | 104.0°F (1964) | 50.0°F (1912) | 4.05 in (1942) |
| August 5 | 104.0°F (1918) | 48.0°F (1912) | 3.71 in (1985) |
| August 6 | 105.1°F (1919) | 53.1°F (1948) | 2.00 in (1921) |
| August 7 | 104.0°F (1930) | 51.1°F (1997) | 2.59 in (1965) |
| August 8 | 107.1°F (1930) | 51.1°F (1997) | 1.85 in (1906) |
| August 9 | 109.9°F (1930) | 53.1°F (1989) | 1.75 in (2001) |
| August 10 | 102.9°F (1998) | 53.1°F (1972) | 3.04 in (1986) |
| August 11 | 102.9°F (1918) | 53.1°F (1967) | 1.59 in (1895) |
| August 12 | 100.9°F (2007) | 48.9°F (1967) | 1.80 in (1958) |
| August 13 | 100.9°F (1913) | 48.0°F (2004) | 2.32 in (1919) |
| August 14 | 100.9°F (1913) | 46.9°F (2004) | 2.23 in (1901) |
| August 15 | 102.9°F (1936) | 46.9°F (2004) | 2.95 in (1950) |
| August 16 | 104.0°F (1936) | 46.9°F (2004) | 1.90 in (2024) |
| August 17 | 107.1°F (1936) | 51.1°F (1897) | 4.45 in (1959) |
| August 18 | 107.1°F (1936) | 55.0°F (1897) | 1.84 in (1946) |
| August 19 | 107.1°F (1936) | 54.0°F (1953) | 2.78 in (1941) |
| August 20 | 102.9°F (1936) | 50.0°F (1967) | 3.60 in (1915) |
| August 21 | 105.1°F (1900) | 46.0°F (1950) | 1.10 in (1971) |
| August 22 | 102.9°F (1987) | 48.9°F (1950) | 1.83 in (1922) |
| August 23 | 99.0°F (1903) | 52.0°F (1923) | 2.56 in (1942) |
| August 24 | 100.0°F (1903) | 50.0°F (1927) | 2.16 in (1941) |
| August 25 | 102.0°F (1978) | 52.0°F (1927) | 2.24 in (1962) |
| August 26 | 100.9°F (1899) | 51.1°F (1927) | 1.83 in (1932) |
| August 27 | 106.0°F (1936) | 48.9°F (1896) | 3.16 in (1982) |
| August 28 | 102.9°F (1936) | 48.9°F (1967) | 3.44 in (2006) |
| August 29 | 100.9°F (1925) | 46.0°F (1986) | 2.73 in (1974) |
| August 30 | 98.1°F (1907) | 45.0°F (1946) | 4.27 in (1978) |
| August 31 | 99.0°F (1925) | 45.0°F (1915) | 1.85 in (1950) |