August weather in Homer Glen, IL
The average temperature in Homer Glen in August is 72.8°F (63.0°F–82.7°F). Average precipitation: 4.36 inches.
August is a summer month in Homer Glen, and is warmer than the annual average of 50.9°F. Daily temperatures swing about 19.7°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 41m. For travel, August is a comfortable month to visit.
Avg High
82.7°F
Avg Low
63.0°F
Precipitation
4.36 in
Daylight
13h 41m
August records in Homer Glen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 97.0°F (2006) | 57.9°F (1998) | 1.99 in (2014) |
| August 2 | 93.9°F (2006) | 55.0°F (2009) | 1.16 in (2013) |
| August 3 | 96.1°F (2012) | 54.0°F (2000) | 2.55 in (2010) |
| August 4 | 95.0°F (2012) | 54.0°F (2000) | 1.71 in (1998) |
| August 5 | 91.9°F (2018) | 51.1°F (2020) | 1.28 in (2024) |
| August 6 | 93.0°F (2022) | 53.1°F (2004) | 0.56 in (2003) |
| August 7 | 93.9°F (2001) | 52.0°F (2004) | 0.73 in (2022) |
| August 8 | 93.0°F (2001) | 52.0°F (2017) | 1.13 in (2011) |
| August 9 | 95.0°F (2001) | 52.0°F (1999) | 0.28 in (2001) |
| August 10 | 91.9°F (2010) | 53.1°F (2024) | 1.12 in (2006) |
| August 11 | 93.0°F (2002) | 51.1°F (2004) | 1.38 in (2005) |
| August 12 | 93.0°F (2010) | 48.9°F (2004) | 3.46 in (2016) |
| August 13 | 91.9°F (2010) | 51.1°F (2004) | 0.67 in (2011) |
| August 14 | 89.1°F (2020) | 50.0°F (2004) | 1.77 in (2023) |
| August 15 | 90.0°F (2025) | 48.0°F (2004) | 0.55 in (2024) |
| August 16 | 91.9°F (2025) | 50.0°F (2004) | 0.55 in (2001) |
| August 17 | 87.1°F (1999) | 55.0°F (2012) | 2.59 in (2025) |
| August 18 | 86.0°F (2021) | 53.1°F (2002) | 2.22 in (2025) |
| August 19 | 88.0°F (2019) | 55.9°F (2000) | 0.84 in (2007) |
| August 20 | 91.0°F (2010) | 52.0°F (2002) | 2.39 in (2022) |
| August 21 | 93.9°F (2003) | 51.1°F (2004) | 1.29 in (2014) |
| August 22 | 89.1°F (2007) | 51.1°F (2004) | 1.04 in (2007) |
| August 23 | 93.9°F (2023) | 54.0°F (2005) | 2.15 in (2007) |
| August 24 | 96.1°F (2023) | 53.1°F (2015) | 1.75 in (1999) |
| August 25 | 93.0°F (2012) | 50.0°F (2017) | 1.06 in (2001) |
| August 26 | 95.0°F (2024) | 52.0°F (2025) | 3.10 in (2012) |
| August 27 | 96.1°F (2024) | 50.0°F (2015) | 1.87 in (2009) |
| August 28 | 93.0°F (2020) | 57.0°F (2015) | 2.36 in (2004) |
| August 29 | 93.0°F (2010) | 54.0°F (2025) | 0.76 in (2022) |
| August 30 | 95.0°F (2013) | 51.1°F (2004) | 0.52 in (2001) |
| August 31 | 93.0°F (2000) | 46.9°F (2009) | 0.84 in (2003) |