What is the weather like today in Chicago?

Chicago weather can change rapidly because of passing fronts, lake effects and strong winds. Today's forecast should be evaluated using hourly temperatures, wind speed, precipitation probability, cloud cover and feels-like temperatures. During colder periods, wind chill can make outdoor conditions feel significantly colder than the actual air temperature. During warmer periods, thunderstorms and sudden temperature changes may affect travel and outdoor plans. If you're commuting or spending time outdoors, checking the hourly forecast is more useful than relying only on the day's maximum temperature.