A life-threatening heatwave is set to engulf the Midwest and Northeast, starting the official summer with temperatures soaring into the triple digits. Severe storms are also predicted for the next two days across the Midwest and East Coast, impacting over 120 million people. High humidity will exacerbate the heat, with heat indices potentially reaching the low to mid-100s in major cities like New York and Boston. The West also faces extreme heat and elevated fire risks. This dangerous heat is expected to last through next week.

Prepared by Olivia Bennett and reviewed by editorial team.