Chicago weather in October (Illinois, United States of America)

Planning a trip to Chicago in October? This guide provides all the details you need.

In October, Chicago generally has moderate temperatures and moderate rainfall. Daytime temperatures hover around 17°C, while nights can cool down to about 7°C.

Chicago in October usually receives moderate rainfall, averaging around 76 mm for the month. Typically around 12 days of rainfall is expected.

With around 195 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If your ideal day consists of dry skies and moderate temperatures September generally stands out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Chicago climate page with graphs.

 

Chicago, monthly averages in October

Min Temperature 7°C  

Max Temperature 17°C  

Chance of Rain 39%  

Precipitation 76 mm  

Rainy days 12 days  

Humidity 68%  

Windspeed 18 km/h  

Sunshine 195 hours  

Percentage Sunshine 56%  

Where to go in the United States of America in October

Find out more about the weather in the United States of America in October and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Chicago in October?

For visitors traveling to Chicago, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Chicago.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.