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Chicago Weather and climate

Data source：Meteostat
Update date：2025-09

Chicago year round climate
  • Spring (March–May): Average 5.5–18.4°C, the climate transitions from cold to warm, with more rainfall, but occasional warm sunshine. Common activities: Visiting museums, art galleries, and strolling through Millennium Park. Recommended clothing: Jacket, comfortable shoes, layers for temperature regulation.
  • Summer (June–August): Average 23.4–24.7°C, the climate is hot and humid, with significant rainfall, especially in July. Common activities: Swimming and boating on the lake, exploring Chicago's parks and neighborhoods, attending outdoor concerts. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 14.4–21.2°C, the climate is cool and comfortable, with decreased rainfall. Colorful autumn leaves are a feature of Chicago's autumn. Common activities: Viewing autumn leaves, touring Chicago's historic neighborhoods, enjoying autumnal cuisine. Recommended clothing: Light jacket, comfortable shoes.
  • Winter (December–February): Average -2.3–1.6°C, the climate is cold, with alternating snowfall and rainfall. Common activities: Visiting indoor museums and art galleries, ice skating, enjoying cozy indoor activities. Recommended clothing: Heavy warm coat, scarf, hat, gloves, thermal underwear.
Chicago climatological average

Annual average temperature: approx. 12.6°C / Annual rainfall: approx. 1003 mm / Summer humidity: 60%–80% / Rainiest month: July

Chicago monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-2.3°C
56.2
February
1.5°C
75.1
March
5.5°C
100.1
April
11.2°C
85.5
May
18.4°C
79
June
23.4°C
65.8
July
24.7°C
211.6
August
24.2°C
89.8
September
21.2°C
65.6
October
14.4°C
59
November
7.3°C
46.1
December
1.6°C
69.4
Chicago weather for the next seven days
10/16
Thursday
Sunny
21.4°C/12.2°C
10/17
Friday
Partly Cloudy
22°C/13.3°C
10/18
Saturday
Partly Cloudy
23.8°C/16.6°C
10/19
Sunday
Moderate rain
18.1°C/11.4°C
10/20
Monday
Sunny
19.8°C/9.8°C
10/21
Tuesday
Sunny
11.8°C/9.2°C
10/22
Wednesday
Sunny
12.5°C/6.5°C

Chicago FAQ

Is Chicago worth visiting as a tourist?
Chicago offers a fantastic blend of big-city excitement with a friendly, accessible feel. Its diverse neighborhoods provide endless exploration opportunities, making it a highly rewarding destination for tourists.
What is the best month to visit Chicago?
The ideal months to visit Chicago are typically during spring (May to early June) and fall (September to October) for pleasant weather and fewer crowds. Summer (June to August) is perfect for outdoor activities and a lively atmosphere, though it's the busiest and most expensive period.
What is the #1 tourist attraction in Chicago?
Navy Pier is consistently one of Chicago's top attractions, drawing millions of visitors annually with its retail, restaurants, museums, exhibition halls, and the iconic Centennial Wheel.
What should you not miss when visiting Chicago?
Don't miss Millennium Park to see the 'Bean' sculpture and Crown Fountain, the Art Institute of Chicago, and a breathtaking architectural boat cruise. Indulge in deep-dish pizza and hot dogs, shop along the Magnificent Mile, and consider the Willis Tower Skydeck for panoramic views.
What are some must-see neighborhoods in Chicago for first-time visitors?
For first-time visitors to Chicago, starting with the Loop to experience the city's heart and the elegant Gold Coast neighborhood is highly recommended. These areas offer a great introduction to the city's iconic landmarks and vibrant atmosphere.