Tens of millions of people across the Midwest and Mid-Atlantic are under heat alerts Monday as a dangerous heat wave that began over the weekend continues to move through the region.
The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather Channel, the city of Mitchell, South Dakota, broke its daily high on Saturday when temperatures climbed to 104 degrees, smashing its previous record of 101 degrees.
Records were also set on Saturday across Wyoming and Minnesota, according to The Weather Channel.