Dangerous heat continues across the U.S. as millions face feels-like temperature reaching into the 90s and 100s from the Southeast to the Midwest.

St. Louis, Missouri, which has been under extreme heat all week, will continue to be under an extreme heat warning this weekend, with the feels-like temperature reaching up to 114 degrees.

Places in South Carolina and North Carolina are also getting in on the extreme heat this weekend, with an extreme heat warning in effect for places like Myrtle Beach, Wilmington and Raleigh for feels-like temperatures reaching between 113 and 115 degrees over the weekend.

Heat advisories for feels-like temperatures reaching well into the 90s and up to the 100s are in effect for multiple areas. From Florida to Virginia, including Tampa, Savannah and Richmond; from Texas to West Virginia, including Dallas, Oklahoma City, Memphis, Cincinnati and Charleston; and for parts of the Upper Midwest, including Pierre, Bismarck, and Duluth.

The Northeast, while still warm, will be noticeably cooler and drier Saturday into Sunday because of a cold front that swept through, which had brought Friday's storms for parts of the region.

The major heat and humidity will continue to build up across the Midwest and the Southeast this weekend, setting up a widespread, life-threatening heat wave to take place through much of next week.

Extreme heat watches have been issued for Omaha, Sioux Falls, Des Moines, Minneapolis and Duluth -- as well as other parts of Nebraska, Iowa, South Dakota and Minnesota. Feel-like temperatures in these areas will likely reach well into the 90s and into the 100s for spots on Sunday.

Meanwhile, consecutive days of feel-like temperatures well into the 100s and exceeding 110 degrees are forecast for millions of Americans from St. Louis to Tampa next week.

An "Extreme Heat Risk," level 4 of 4, is in place from Sunday through Thursday for large portions of the Southeast. 

This highest level is described as "Rare and/or long-duration extreme heat with no overnight relief affecting anyone without cooling/hydration as well as health systems, industries and infrastructure."

Fire concern in places dealing with wildfires

Fire weather alerts are in place for portions of Utah, Colorado and Wyoming for gusty and dry conditions on Saturday.

This dry and windy weather will aid any ongoing fires -- like the Deer Creek Fire that has burned more than 17,000 acres but is 77% contained as of Saturday morning -- as well as help quickly grow any new fires that occur.