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About Chicago's Climate

Chicago earns its Windy City reputation with fierce lake-effect winds and extreme winters. Summers are warm and humid, winters are brutally cold with heavy snowfall from Lake Michigan.

This page shows live weather data fetched directly from Open-Meteo on each visit — no cached data, no stale forecasts. For accurate travel planning, check back closer to your travel date.

Common Questions
What is the weather in Chicago today?
Live current conditions for Chicago, United States are shown above and updated on every page load from Open-Meteo's real-time weather data. You'll see temperature, wind, humidity, UV index, and a full 7-day outlook.
How accurate is the Chicago weather forecast?
Aorista uses Open-Meteo, which aggregates data from national meteorological services including ECMWF, NOAA, DWD, MeteoFrance, and others. Accuracy is comparable to paid services like Weather.com or AccuWeather.
What is the climate like in Chicago?
Chicago earns its Windy City reputation with fierce lake-effect winds and extreme winters. Summers are warm and humid, winters are brutally cold with heavy snowfall from Lake Michigan.
Can I switch between Celsius and Fahrenheit?
Yes — use the main weather tool to toggle between °C and °F. The full forecast updates instantly.
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Planning a trip to Chicago