Month-by-month travel weather
Chicago October weather
Chicago, United States · October
A light jacket often becomes a daily default
October turns crisp, and wind can make evenings feel much colder than afternoons.
Rainy days can feel noticeably cooler, so a shell option helps for walking plans.
October averages at a glance
Average low
around 7–10°C
Average high
around 15–19°C
Average precipitation
around 60–85 mm
Rainy days
about 6–9 days
What to wear in October in Chicago
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Light jacket/hoodie + layers.
- • Optional rain option.
- • Add a warmer layer for late-night plans.
Travel tips for visiting Chicago in October
- • After sunset, comfort can drop quickly—plan for it.
- • If wind is strong, dress more conservatively.
October weather in Chicago — FAQ
Q. Is October cold?
A. Days can be mild, but wind can make it feel chilly, especially at night.
Q. What should I wear?
A. A light jacket with layers is the most reliable.
Explore Chicago
These pages are connected so you can compare conditions and decide for yourself.