Labor Day weekend will bring scorching, record-setting temperatures to the west, as well as parts of the south-central and southern US, while the eastern half of the country will see a cool down to seasonal highs.
Over 50 million people in the west are expected to be under excessive heat watches or warnings through the Labor Day weekend, CNN reports.
Sunday is anticipated to be the hottest day in the west, with the National Weather Service tweeting temps will be 100-115 away from the beaches, with overnight temps in the 70s/80s.
Over 125 record high temperatures could occur Saturday through Monday.
The National Weather Service (NWS) has issued the following heat alerts across the US for Friday.
Excessive heat warning: Northern, north-central, south-central, southeastern, southwestern and deserts of California; southern Nevada; northwestern, western, central, southwestern and southeastern Arizona.
Heat advisory: southwest Oregon; northern California; southeast Idaho; western and southern Nevada; northern, western and southwestern Louisiana; southeast Texas; southeast Georgia; northeast and west-central Florida.
Beginning on Friday, the eastern half of the country will see temperatures beginning to decline toward more seasonal highs. By Monday, high temperatures in the upper Midwest will drop by around 15-20 degrees.
West: San Francisco 69, partly cloudy; Los Angeles 91, sunny; Reno 101, sunny; Las Vegas 111, sunny; Salt Lake City 94, sunny; Denver 92, sunny.
Northwest & Northern Rockies: Seattle 85, mostly sunny; Medford 100, sunny; Boise 96, sunny; Cut Bank 89, sunny; Billings 89, sunny; Minot 75, mostly sunny; Rapid City 85, sunny.
Southwest: Phoenix 114, sunny; Albuquerque 94, sunny; El Paso 99, sunny; San Antonio 86, thunderstorms; Brownsville 95, partly cloudy.
Central & Upper Midwest: Lubbock 91, sunny; Dallas 83, thunderstorms; Oklahoma City 89, partly cloudy; Kansas City 84, sunny; Minneapolis 75, partly cloudy.
Ohio Valley: Chicago 80, sunny; St. Louis 81, mostly sunny; Detroit 75, sunny; Cincinnati 78, partly cloudy.
South: Houston 89, thunderstorms; New Orleans 92, partly cloudy; Memphis 85, cloudy; Atlanta 91, mostly sunny; Charlotte 92, mostly sunny; Jacksonville 95, partly cloudy; Tampa 94, thunderstorms; Miami 90, partly cloudy.
East: Norfolk 91, sunny; Washington, D.C. 87, partly cloudy; Buffalo 72, mostly sunny; New York City 88, mostly sunny; Boston 85, mostly sunny; Caribou 76, sunny.