Get ready for triple-digit temperatures again, as massive heat dome engulfs the US

More than 25 million people in over a dozen states are under heat alerts Saturday. From the northern Plains to the Southeast, temperatures will be in the upper 90s, with heat index levels well into the triple digits.

The heat wave comes on the heels of another record-breaking heat wave over the last week, which impacted many of the same regions about to be affected by the second wave.

From Lincoln, Nebraska, to Fargo, North Dakota, temperatures will reach triple digits by the end of the weekend. The heat wave focused over the Northern Plains will be 20 to 25 degrees above normal.

Another big heat wave next week

The heat dome currently situated over the northern Plains will move eastward to the Midwest and South, setting up another record-breaking week, and cutting short the reprieve from the heat many of these states will get the next few days.

Dozens of cities could break records for the hottest morning low temperature over the next five days. More records are expected next week across the Midwest, Southeast and Mid-Atlantic.