May in Chicago: Weather, What to Pack, and What to See

Chicago skyline and Navy Pier from Lake Michigan

Fraser Hall / Getty Images

May is a great time of the year to visit Chicago—from lovely Mother's Day brunches to the re-opening of outdoor attractions. Here is what to expect while visiting Chicago in May plus some activities on tap for the month. Have a great time exploring the Windy City!

Chicago Weather in May

Even though it's known as the Windy City, Chicago in May is more like summertime, as temperatures start the rise and sun breaks through in a departure from springs cloudy, showery days. If you want warm temperatures that aren't too hot, May is a great month to check out this Midwest hub.

Often known as the ‘Windy City’, Chicago is in the state of Illinois alongside the waters of Lake Michigan. In May the city is more summery as temperatures rise and the sun shines through the clouds, although it can be showery at this time of year as well. If you want to explore Chicago in warm but not overly hot conditions, May is a great month to visit this popular, vibrant city in the Midwest.

  • Average high temperature: 70 degrees Fahrenheit (21 degrees Celsius)
  • Average low temperature: 51 degrees Fahrenheit (10 degrees Celsius)
  • Average precipitation: 3.7 inches

Chicago averages nine hours of sunlight per day in May, although there is an average of eight rainy days during the month.

What to Pack

Dress in layers because Chicago weather can be unpredictable. The city is also notorious for dramatically dropping or increasing in temperature by 20 degrees or more in one day. Regardless of the temperatures, light sweaters or long-sleeved T-shirts, along with jeans, are always appropriate. You'll want to pack a lined spring coat as well as sweaters and scarves in case it gets chilly at night. Bring along an umbrella as well, just in case.

People visit the Crown Fountain in Chicago's Millennium Park
Jean-Marc Giboux / Getty Images

May Events in Chicago

Chicago's event calendar is full in May, ranging from the celebration of national holidays like Memorial Day to fun, seasonal events like the Chicago Kids and Kites Festival.

  • Bringing the kids over Memorial Day? Then check out these family-friendly places to sleepeat, and play during this extended holiday weekend at the end of May. Don't forget the Memorial Day Parade through downtown Chicago on Saturday. The day begins with a wreath-laying ceremony at 11 a.m. at Daley Plaza, then the parade heads south on State Street from Lake Street to Van Buren Street.
  • Go for a spin along Chicago's iconic Lake Shore Drive at Bike the Drive. Enjoy the scenery along the 30-mile, car-free course. After the ride, hang out in Grant Park for live music, food, and giveaways. The benefit ride is open to all skill levels and abilities.
  • Celebrate German heritage at Maifest in Lincoln Square, the heart of Chicago's German Community. The event marks the arrival of spring and features a maypole dance, live music, and German food.

May Travel Tips

  • The weather in May should be finally warm enough to explore the outdoors. May is when Chicago beaches open, so you may also want to pack a swimsuit, beach towel, hat, and sunscreen.
  • Hotel prices increase due to tourism season heating up. If you're booking a room for May, check out these places that offer Chicago's best hotel room views.
  • There is a chance of travel problems if a storm comes through. If bad weather does cause a flight delay, here is where to dine and drink as you wait it out at Midway or O'Hare airports.
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