Over 245 million Americans are expected to experience 90F temperatures early this week, with some as high as 105F

A heatwave that impacted the US west coast over the past week is now moving east into the midwest and south-east, as millions of Americans have been under a heat alert at some point in the past week.

“Numerous near record-tying/breaking high temperatures are possible over the central High Plains and Southeast Sunday, and along much of the East Coast by Monday,” reported the National Weather Service.

Cities on the east coast such as Baltimore and Washington DC will experience temperatures up to 100F (38C) this Tuesday. Temperatures in the west are expected to fall to typical summer averages.