Live forecast for Chicago, IL — updated in real time. Check today's temperature, UV index, hourly breakdown, and 14-day outlook.
Chicago has a humid continental climate with four sharply defined seasons. Summers are warm to hot and often humid, while winters are cold and snowy, with temperatures regularly dropping below freezing and bitter wind chills off Lake Michigan.
The city's nickname, the "Windy City," reflects the steady breezes that sweep in from the lake, which also moderate temperatures near the shore. Spring and fall are short but pleasant, though rapid weather swings and thunderstorms are common in the warmer months.
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