August weather in Iroquois, IL
The average temperature in Iroquois in August is 71.6°F (60.0°F–83.2°F). Average precipitation: 3.50 inches.
August is a summer month in Iroquois, and is warmer than the annual average of 50.7°F. Daily temperatures swing about 23.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 38m. For travel, August is a comfortable month to visit.
Avg High
83.2°F
Avg Low
60.0°F
Precipitation
3.50 in
Daylight
13h 38m
August records in Iroquois
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (1897) | 48.0°F (1990) | 1.12 in (1926) |
| August 2 | 102.9°F (1988) | 46.0°F (1990) | 1.50 in (1921) |
| August 3 | 100.9°F (1908) | 45.0°F (1912) | 3.11 in (1943) |
| August 4 | 100.0°F (1916) | 46.0°F (1912) | 1.75 in (2004) |
| August 5 | 100.0°F (1916) | 43.0°F (1912) | 1.30 in (1923) |
| August 6 | 99.0°F (1947) | 46.0°F (1948) | 1.60 in (1906) |
| August 7 | 96.1°F (1914) | 46.9°F (1901) | 2.59 in (1947) |
| August 8 | 100.9°F (1914) | 43.0°F (1904) | 1.70 in (1998) |
| August 9 | 102.9°F (1913) | 46.0°F (1904) | 2.55 in (1924) |
| August 10 | 105.1°F (1913) | 46.0°F (1972) | 3.53 in (1977) |
| August 11 | 98.1°F (1941) | 44.1°F (1965) | 2.14 in (1974) |
| August 12 | 99.0°F (1905) | 43.0°F (1967) | 3.20 in (1937) |
| August 13 | 99.0°F (1944) | 46.0°F (1898) | 2.69 in (1999) |
| August 14 | 99.0°F (1940) | 39.9°F (1964) | 1.78 in (1952) |
| August 15 | 97.0°F (1901) | 44.1°F (1963) | 2.86 in (1981) |
| August 16 | 100.9°F (1988) | 46.0°F (1964) | 2.70 in (2016) |
| August 17 | 102.0°F (1988) | 42.1°F (1963) | 2.03 in (1997) |
| August 18 | 105.1°F (1988) | 39.0°F (1963) | 1.75 in (1979) |
| August 19 | 104.0°F (1988) | 48.0°F (1896) | 3.40 in (2002) |
| August 20 | 98.1°F (1899) | 42.1°F (1897) | 1.86 in (1993) |
| August 21 | 98.1°F (1916) | 41.0°F (1950) | 1.94 in (2007) |
| August 22 | 97.0°F (1906) | 46.9°F (1907) | 2.30 in (1910) |
| August 23 | 98.1°F (1914) | 44.1°F (1904) | 1.10 in (1911) |
| August 24 | 97.0°F (1903) | 41.0°F (2008) | 2.10 in (1972) |
| August 25 | 95.0°F (1959) | 46.9°F (1942) | 1.32 in (2004) |
| August 26 | 95.0°F (1948) | 43.0°F (1910) | 1.72 in (2004) |
| August 27 | 96.1°F (1899) | 42.1°F (1968) | 3.46 in (1942) |
| August 28 | 98.1°F (1899) | 43.0°F (1982) | 1.49 in (1903) |
| August 29 | 96.1°F (1899) | 37.9°F (1965) | 2.20 in (1975) |
| August 30 | 96.1°F (1945) | 41.0°F (1986) | 1.56 in (1955) |
| August 31 | 98.1°F (1953) | 37.9°F (1915) | 3.22 in (1945) |