August weather in Congerville, IL
The average temperature in Congerville in August is 73.4°F (62.5°F–84.3°F). Average precipitation: 3.74 inches.
August is a summer month in Congerville, and is warmer than the annual average of 52.1°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 37m. For travel, August is a comfortable month to visit.
Avg High
84.3°F
Avg Low
62.5°F
Precipitation
3.74 in
Daylight
13h 37m
August records in Congerville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 96.1°F (2012) | 48.9°F (2019) | 1.16 in (2024) |
| August 2 | 95.0°F (2012) | 50.0°F (2009) | 2.24 in (1994) |
| August 3 | 97.0°F (2012) | 54.0°F (2025) | 0.57 in (1995) |
| August 4 | 95.0°F (2010) | 53.1°F (2025) | 1.02 in (1995) |
| August 5 | 95.0°F (2012) | 48.9°F (2020) | 1.31 in (2023) |
| August 6 | 93.0°F (2018) | 46.0°F (1997) | 1.16 in (1991) |
| August 7 | 93.9°F (2001) | 45.0°F (2004) | 0.70 in (2023) |
| August 8 | 98.1°F (2012) | 48.9°F (2017) | 1.15 in (1999) |
| August 9 | 93.9°F (2001) | 50.0°F (1999) | 2.24 in (2021) |
| August 10 | 98.1°F (2001) | 48.9°F (2004) | 1.83 in (2010) |
| August 11 | 96.1°F (2005) | 46.0°F (2004) | 1.51 in (1997) |
| August 12 | 93.0°F (2010) | 43.0°F (2004) | 1.51 in (2021) |
| August 13 | 96.1°F (2007) | 39.9°F (2004) | 2.63 in (2016) |
| August 14 | 93.0°F (2010) | 39.9°F (2004) | 1.40 in (2002) |
| August 15 | 91.9°F (2007) | 39.9°F (2004) | 0.52 in (2024) |
| August 16 | 95.0°F (2000) | 41.0°F (2004) | 1.80 in (2024) |
| August 17 | 95.0°F (2025) | 48.9°F (2008) | 2.86 in (1997) |
| August 18 | 93.9°F (2025) | 48.0°F (2012) | 1.03 in (2015) |
| August 19 | 93.0°F (2025) | 50.0°F (2000) | 2.17 in (2002) |
| August 20 | 91.9°F (2005) | 50.0°F (2001) | 1.18 in (2009) |
| August 21 | 91.0°F (2003) | 46.9°F (2004) | 1.40 in (2022) |
| August 22 | 97.0°F (2003) | 46.9°F (2024) | 1.19 in (2014) |
| August 23 | 95.0°F (2001) | 48.0°F (1997) | 1.73 in (2002) |
| August 24 | 97.0°F (2023) | 50.0°F (1996) | 1.16 in (1993) |
| August 25 | 100.0°F (2023) | 48.9°F (2025) | 0.67 in (2007) |
| August 26 | 93.9°F (2014) | 45.0°F (2025) | 1.18 in (2004) |
| August 27 | 98.1°F (2003) | 46.9°F (2015) | 3.19 in (1994) |
| August 28 | 97.0°F (2003) | 51.1°F (2010) | 1.29 in (2009) |
| August 29 | 96.1°F (2013) | 52.0°F (2002) | 2.10 in (2018) |
| August 30 | 91.9°F (2010) | 46.9°F (2004) | 0.82 in (2016) |
| August 31 | 99.0°F (2013) | 44.1°F (2009) | 1.45 in (1993) |