was the hottest place on Earth on Sunday. If verified, it could be the .

The hottest, driest and lowest national park in California and Nevada recorded a preliminary high temperature of 130 F (54.4 C) on Sunday, according to the (NWS). The previous all-time high reported over 100 years ago was also recorded in Death Valley.

It'll be just as hot on Monday in Death Valley with a predicted high of 129 F,. The agency is warning people who live in eastern California, Nevada, Arizona and Utah to limit their time outside to between 5 a.m. and 8 a.m.

Nearly 60 million people in the U.S., from Arizona up to the U.S.-Canada border, are under a heat advisory, watch or warning this week, . The heat is the result of high pressure that's settled over much of the West Coast.

It's been a sweltering summer for much of the U.S. -- last month was the hottest July on record for seven states along the East Coast, according to the .

Not to be outdone, Death Valley reported a high of 128 F last month too -- its hottest temperature (until this month) since 2013, NOAA reported.