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The Weather in July in Chicago

Updated: May 10, 2024

This post summarizes the July weather in Chicago, with tips on what to wear, as well as things to do.

As local tour guides, we know that July is one of the best times for walking tours, because there's usually a lot of great, sunny weather.

And I am not just a tour guide. I'm also a retired meteorologist who has found a new way to put my experiences to work.

Be sure to look into the weather in June and August as well.


July in Chicago features warm afternoons and evenings with mostly comfortable mornings.

Afternoon high temperatures tend to be in the lower 80s F (27-28 C) with a few days reaching into the lower 90s F (32-33 C).

About 6 days this month will record high temperatures of 90 F (about 32 C) or more with the record high temperature for Chicago during July is 104 F (40.0 C).

Average Temps in Chicago in July

Late night and early morning low temperatures tend to be in the upper 60s F (about 20 C) early in the month, warming to the lower 70s F (21-22 C) near the end of the month.

A few of the cooler mornings will dip down into the lower 60s F (about 16 C). The record low temperature in Chicago during July is 40F (4.4 C)


About 21 days this month will be sunny or at least partly sunny.

Some rain falls on about 9-10 days, however, significant rainfalls of 0.5 inches (12.7 mm) or more occur only on about 2 days this month.

July in Chicago can be on the humid side with 11-15 days being considered muggy and 3-6 of these days considered oppressive.

Sunny Days in Chicago in July

You can expect a little over 15 hours of daylight early in the month decreasing to about 14.5 hours at the end of the month so there is ample time to explore this great city.

Seasonal Outlook - July to September 2024 Chicago

There is a 75% chance for normal to above-normal temperatures with near-normal rainfall.


Light summer clothes are best for this month with perhaps a light sweater for a few of the cooler early mornings.

What to Wear in Chicago in July

Don’t forget to bring some comfortable walking shoes.


Below are the top things to do in July in Chicago.

But, be sure to read our full post on what to do in Chicago in July.

It includes free things to do, night and family-friendly activities and attractions, as well as our definitive post on the best things to do in Chicago.

And if you are planning on visiting many of Chicago's top attractions, then you should consider a tourist concession pass.

These passes could save up to 50% of retail ticket prices to tours, attractions, and restaurants.

  1. Watch a Chicago Sky WNBA Game
  2. Enjoy an outdoor concert
  3. Go on a Sightseeing Tour
  4. Celebrate the 4th of July
  5. Taste of Chicago
  6. Attend a Food & Drink Festival
  7. Chinatown Summer Fair
  8. Millennium Art Fest
  9. Chicago Summer Dance
  10. Check out a Tourist Concession Pass

Be sure to check out all the top things to do in  July in our main post.

Fred Pickhardt
Ocean Weather Services

About The Author

Fred Pickhardt

Fred is a marine meteorologist and sailed briefly with American Export Lines in the Far East trade. He has extensive experience in weather analysis, weather forecasting, and forensic weather event reconstructions. Fred founded Ocean Weather Services and currently provides forensic marine weather reports to the maritime industry.
Updated: May 10th, 2024
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