evidence: More than 20 daily high records were broken or tied in the US on Tuesday [...] There are 75 potential high temperature records that could be tied or broken through Saturday, and there could be more than 95 record high minimum temperature records broken through Saturday. [...] Heat: More than 70 million people are under heat alerts from Florida to California. There have been more than 1,800 record high temperatures in the US so far this month and more than 26,000 record high temperatures in the US this year, per the National Oceanic and Atmospheric Administration. There are more than 170 potential temperature records (both high and low temperature records) that could be broken through Saturday.