October weather in Carol Stream, IL
The average temperature in Carol Stream in October is 52.2°F (42.0°F–62.4°F). Average precipitation: 2.99 inches.
October is a fall month in Carol Stream, and is warmer than the annual average of 49.7°F. Daily temperatures swing about 20.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 10h 50m. For travel, October is a comfortable month to visit.
Avg High
62.4°F
Avg Low
42.0°F
Precipitation
2.99 in
Daylight
10h 50m
October records in Carol Stream
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (2019) | 30.9°F (2003) | 1.29 in (2018) |
| October 2 | 84.9°F (2025) | 27.0°F (2003) | 1.23 in (2019) |
| October 3 | 89.1°F (2025) | 30.9°F (2004) | 1.17 in (2000) |
| October 4 | 89.1°F (2025) | 30.9°F (2004) | 0.98 in (2001) |
| October 5 | 84.9°F (1997) | 27.0°F (2004) | 1.32 in (2018) |
| October 6 | 88.0°F (2007) | 30.0°F (2001) | 0.47 in (2017) |
| October 7 | 88.0°F (2007) | 27.0°F (2001) | 1.70 in (2025) |
| October 8 | 87.1°F (2007) | 27.1°F (2012) | 1.12 in (2004) |
| October 9 | 88.0°F (2010) | 26.1°F (2000) | 0.30 in (2009) |
| October 10 | 84.0°F (2010) | 28.0°F (2000) | 0.47 in (2017) |
| October 11 | 82.9°F (2024) | 28.2°F (2009) | 1.25 in (2019) |
| October 12 | 84.0°F (2008) | 30.2°F (2006) | 0.54 in (2001) |
| October 13 | 78.1°F (2008) | 30.9°F (2002) | 2.51 in (2001) |
| October 14 | 78.1°F (2020) | 28.0°F (2002) | 3.90 in (2017) |
| October 15 | 79.0°F (1999) | 27.0°F (1997) | 0.31 in (2008) |
| October 16 | 78.1°F (1998) | 29.1°F (2018) | 0.65 in (2007) |
| October 17 | 82.9°F (2016) | 28.0°F (2004) | 3.05 in (1998) |
| October 18 | 78.1°F (2007) | 27.1°F (2015) | 0.57 in (2025) |
| October 19 | 75.0°F (2000) | 28.0°F (1997) | 0.55 in (2025) |
| October 20 | 84.0°F (2003) | 26.2°F (2018) | 0.17 in (2008) |
| October 21 | 81.0°F (2024) | 23.2°F (2018) | 0.38 in (2006) |
| October 22 | 79.0°F (2022) | 25.2°F (2013) | 1.45 in (2020) |
| October 23 | 78.1°F (2022) | 28.0°F (2005) | 1.03 in (2004) |
| October 24 | 80.1°F (2023) | 25.0°F (1999) | 1.74 in (2021) |
| October 25 | 73.9°F (2012) | 24.3°F (2013) | 0.74 in (2022) |
| October 26 | 75.0°F (2000) | 31.1°F (2013) | 1.70 in (2019) |
| October 27 | 77.0°F (2014) | 23.0°F (1997) | 0.55 in (1998) |
| October 28 | 78.1°F (1999) | 21.0°F (1997) | 0.31 in (2021) |
| October 29 | 81.0°F (2024) | 27.0°F (2005) | 0.53 in (2004) |
| October 30 | 79.0°F (2024) | 25.2°F (2023) | 0.76 in (2009) |
| October 31 | 71.1°F (2024) | 22.1°F (2023) | 0.88 in (2013) |