This is the 18561st most frequent Korean word.
시카고의
"Of Chicago" or "Chicago's"
The word '시카고의' ('of Chicago') is used here as a possessive marker specifying the weather belonging or related to Chicago.
시카고의 날씨는 예측하기 어렵습니다.
The weather of Chicago is hard to predict.
In this sentence, '시카고의' ('of Chicago') denotes possession or association, referring to the history related to Chicago.
시카고의 역사에는 흥미로운 사건들이 많습니다.
Chicago's history contains many interesting events.
Here, '시카고의' indicates ownership or characteristic relation, associating the uniqueness and deliciousness specifically with the food from Chicago.