August weather in Carol Stream, IL
The average temperature in Carol Stream in August is 71.9°F (61.8°F–82.0°F). Average precipitation: 3.84 inches.
August is a summer month in Carol Stream, and is warmer than the annual average of 49.7°F. Daily temperatures swing about 20.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 42m. For travel, August is a comfortable month to visit.
Avg High
82.0°F
Avg Low
61.8°F
Precipitation
3.84 in
Daylight
13h 42m
August records in Carol Stream
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 96.1°F (2006) | 51.1°F (1998) | 0.20 in (2000) |
| August 2 | 97.0°F (2006) | 54.0°F (2009) | 0.93 in (2006) |
| August 3 | 95.0°F (2012) | 54.0°F (2000) | 1.45 in (2010) |
| August 4 | 95.0°F (2018) | 53.1°F (2000) | 1.46 in (1998) |
| August 5 | 91.9°F (2018) | 48.9°F (2020) | 0.87 in (1998) |
| August 6 | 93.0°F (2022) | 48.0°F (2004) | 0.91 in (2000) |
| August 7 | 93.9°F (2001) | 50.0°F (2004) | 1.37 in (2018) |
| August 8 | 91.9°F (2001) | 52.0°F (1997) | 1.07 in (2011) |
| August 9 | 93.9°F (2005) | 48.9°F (1999) | 0.88 in (2008) |
| August 10 | 91.9°F (2021) | 54.0°F (2008) | 0.31 in (2020) |
| August 11 | 91.9°F (2016) | 50.0°F (2004) | 1.41 in (2014) |
| August 12 | 93.9°F (2010) | 48.0°F (2004) | 0.70 in (2005) |
| August 13 | 91.0°F (2010) | 50.0°F (2004) | 2.86 in (2002) |
| August 14 | 89.1°F (2020) | 46.0°F (2004) | 0.71 in (2023) |
| August 15 | 91.0°F (2025) | 44.1°F (2004) | 0.66 in (2018) |
| August 16 | 95.0°F (2025) | 48.9°F (2004) | 0.77 in (2009) |
| August 17 | 87.1°F (2015) | 51.1°F (2013) | 0.84 in (2000) |
| August 18 | 88.0°F (2025) | 48.0°F (2012) | 1.42 in (2025) |
| August 19 | 89.1°F (2021) | 51.1°F (1997) | 0.35 in (2009) |
| August 20 | 93.0°F (2023) | 51.1°F (2002) | 1.52 in (2022) |
| August 21 | 93.9°F (2003) | 48.9°F (2004) | 1.38 in (2014) |
| August 22 | 90.0°F (2007) | 48.0°F (2004) | 1.70 in (2002) |
| August 23 | 95.0°F (2023) | 51.1°F (1997) | 1.97 in (2007) |
| August 24 | 97.0°F (2023) | 51.1°F (2005) | 0.68 in (2006) |
| August 25 | 95.0°F (2003) | 46.0°F (2017) | 1.58 in (2001) |
| August 26 | 93.9°F (2024) | 48.0°F (2025) | 1.50 in (2009) |
| August 27 | 97.0°F (2024) | 46.9°F (2015) | 0.80 in (2016) |
| August 28 | 93.0°F (2021) | 52.0°F (2023) | 1.26 in (2004) |
| August 29 | 91.9°F (2010) | 51.1°F (1999) | 1.25 in (2015) |
| August 30 | 93.0°F (2013) | 48.0°F (2009) | 0.78 in (2001) |
| August 31 | 91.0°F (2000) | 43.0°F (2009) | 0.94 in (2013) |