Average Weather October in Chicago (Illinois), United States of America

The average minimum temperature (usually the minimum temperature is noted during the night) in Chicago in October is 5.0°C (41°F). The amount of rain in October is normal with an average of 61mm (2.4in). The average maximum temperature lies around 17.0°C (62.6°F). If you enjoy looking at a blue sky and like sunbathing than this month is a great period to visit Chicago. It has 216 hours of sun.

So what to wear in October? Visitors traveling to Chicago should plan on bringing a totally waterproof rain jacket since it will be raining some days. Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly.

Do these climate conditions match with when you want to go to Chicago? Find out where to stay here.

For other monthly weather averages and what to do in October look at the numbers below.

Monthly Averages

Min Temperature 41 °F
Max Temperature 62.6 °F
Chance of Rain 26.7%
Precipitation 2.4 in
Rainy Days 8
Sunshine Hours 216

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
10/10

More Climate Information For Chicago

Weather and Climate offers all the information you need to know about the climate in Chicago.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in United States of America and climate and forecast data for all other countries in the world.

Cheapest month to fly to Chicago

Where to stay in Chicago

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