August weather in Morrison, IL
The average temperature in Morrison in August is 70.4°F (59.7°F–81.1°F). Average precipitation: 4.32 inches.
August is a summer month in Morrison, and is warmer than the annual average of 48.3°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 41m. For travel, August is a comfortable month to visit.
Avg High
81.1°F
Avg Low
59.7°F
Precipitation
4.32 in
Daylight
13h 41m
August records in Morrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1988) | 48.0°F (1908) | 1.35 in (1942) |
| August 2 | 100.9°F (1988) | 48.0°F (1912) | 2.00 in (1929) |
| August 3 | 100.0°F (1913) | 42.1°F (1912) | 2.30 in (1959) |
| August 4 | 100.9°F (1916) | 43.0°F (1912) | 3.80 in (1957) |
| August 5 | 102.9°F (1918) | 46.9°F (1978) | 2.42 in (2016) |
| August 6 | 100.0°F (1918) | 46.0°F (1910) | 2.00 in (1921) |
| August 7 | 100.0°F (1918) | 48.0°F (1976) | 2.60 in (1967) |
| August 8 | 100.9°F (1934) | 43.0°F (1904) | 3.01 in (1939) |
| August 9 | 100.9°F (1934) | 46.9°F (1927) | 1.52 in (1979) |
| August 10 | 100.0°F (1944) | 46.0°F (1917) | 2.25 in (1980) |
| August 11 | 100.0°F (1941) | 45.0°F (1968) | 1.85 in (1911) |
| August 12 | 104.0°F (1918) | 44.1°F (1946) | 2.18 in (1911) |
| August 13 | 99.0°F (1918) | 48.0°F (1967) | 1.83 in (1956) |
| August 14 | 100.0°F (1936) | 39.9°F (1964) | 3.05 in (1987) |
| August 15 | 100.9°F (1913) | 43.0°F (1964) | 4.20 in (1981) |
| August 16 | 102.0°F (1913) | 45.0°F (1976) | 3.45 in (1898) |
| August 17 | 104.0°F (1988) | 46.0°F (1976) | 2.44 in (1946) |
| August 18 | 105.1°F (1936) | 43.0°F (1963) | 4.60 in (1979) |
| August 19 | 100.0°F (1916) | 46.0°F (1915) | 3.75 in (1924) |
| August 20 | 102.0°F (1916) | 42.1°F (1950) | 2.13 in (1979) |
| August 21 | 100.0°F (1947) | 44.1°F (1950) | 2.42 in (1937) |
| August 22 | 102.9°F (1936) | 44.1°F (1923) | 2.34 in (1924) |
| August 23 | 100.9°F (1947) | 46.0°F (1920) | 2.00 in (1895) |
| August 24 | 100.9°F (1947) | 41.0°F (1942) | 1.39 in (1900) |
| August 25 | 96.1°F (2023) | 39.0°F (1917) | 1.40 in (1972) |
| August 26 | 97.0°F (1953) | 42.1°F (1910) | 3.12 in (1987) |
| August 27 | 98.1°F (1899) | 44.1°F (1915) | 1.80 in (1936) |
| August 28 | 100.0°F (1897) | 37.9°F (1915) | 2.00 in (1931) |
| August 29 | 98.1°F (1937) | 42.1°F (1934) | 2.42 in (2018) |
| August 30 | 100.0°F (1953) | 34.0°F (1920) | 1.60 in (1948) |
| August 31 | 102.0°F (1953) | 36.0°F (1915) | 2.20 in (1981) |