Severe weather conditions, including intense heat and potential thunderstorms, are expected across various parts of the U.S. today and into the weekend. Chicago may see two rounds of storms with damaging winds, potentially affecting Lollapalooza attendees. In Omaha, dangerous heat with temperatures nearing 100°F and storm threats will be prevalent. Similarly, Atlanta is under a heat advisory with heat indices up to 109°F and possible severe storms. Mid-Michigan, Topeka, and Indianapolis also face high heat and humidity, with scattered thunderstorms and a risk of severe weather including damaging winds and hail. New Mexico continues to experience high temperatures with increasing rain chances due to monsoon moisture expected by Thursday.