Typical October weather
Chicago
Illinois · October
63° days
45° nights
about 6 rainy days · 11 hours of daylight
What to pack
- Sweater
What October feels like
The Chicago Marathon takes over the whole city on the second Sunday and hotel rates know it. Fall color runs later here than up in Wisconsin, so the parks and boulevards are still turning when the leaves further north are already down.
Expect about 6 days with real rain — enough to notice, not enough to plan around. The air runs dry — whatever the thermometer says, it wears easy.
The numbers
| Typical high | 63° |
|---|---|
| Typical low | 45° |
| Days with real rain | 6 |
| Total rain | 3.4 in |
| Humidity | dry air |
| Sunrise / sunset (mid-month) | 7:03 am / 6:09 pm |