October weather in Chicago, IL
The average temperature in Chicago in October is 54.3°F (47.7°F–60.9°F). Average precipitation: inches.
October is a fall month in Chicago, and is warmer than the annual average of 50.8°F. Daily temperatures swing about 13.2°F between overnight low and afternoon high. Daylight averages about 10h 50m. For travel, October is a comfortable month to visit.
Avg High
60.9°F
Avg Low
47.7°F
Precipitation
in
Daylight
10h 50m
October records in Chicago
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (2019) | 48.9°F (2009) | — |
| October 2 | 82.9°F (2017) | 46.0°F (2020) | — |
| October 3 | 87.1°F (2018) | 45.0°F (2014) | — |
| October 4 | 88.0°F (2005) | 37.0°F (2014) | — |
| October 5 | 84.0°F (2005) | 41.0°F (2014) | — |
| October 6 | 88.0°F (2007) | 36.0°F (2012) | — |
| October 7 | 87.1°F (2007) | 43.0°F (2012) | — |
| October 8 | 89.1°F (2007) | 39.9°F (2012) | — |
| October 9 | 84.9°F (2018) | 43.0°F (2012) | — |
| October 10 | 86.0°F (2010) | 37.9°F (2009) | — |
| October 11 | 82.0°F (2024) | 35.1°F (2009) | — |
| October 12 | 78.1°F (2008) | 32.0°F (2006) | — |
| October 13 | 81.0°F (2008) | 34.0°F (2006) | — |
| October 14 | 75.9°F (2005) | 37.0°F (2006) | — |
| October 15 | 71.1°F (2007) | 37.0°F (2006) | — |
| October 16 | 73.0°F (2010) | 36.0°F (2018) | — |
| October 17 | 82.9°F (2016) | 37.9°F (2022) | — |
| October 18 | 80.1°F (2007) | 36.0°F (2019) | — |
| October 19 | 73.0°F (2015) | 36.0°F (2022) | — |
| October 20 | 79.0°F (2017) | 35.1°F (2022) | — |
| October 21 | 81.0°F (2024) | 32.0°F (2018) | — |
| October 22 | 79.0°F (2022) | 35.1°F (2013) | — |
| October 23 | 78.1°F (2022) | 36.0°F (2006) | — |
| October 24 | 81.0°F (2023) | 34.0°F (2006) | — |
| October 25 | 77.0°F (2012) | 33.1°F (2013) | — |
| October 26 | 72.0°F (2010) | 35.1°F (2020) | — |
| October 27 | 75.9°F (2014) | 34.0°F (2020) | — |
| October 28 | 66.9°F (2024) | 34.0°F (2020) | — |
| October 29 | 81.0°F (2024) | 36.0°F (2017) | — |
| October 30 | 79.0°F (2024) | 32.0°F (2014) | — |
| October 31 | 73.0°F (2008) | 28.0°F (2019) | — |