Extreme Heat Warning: Millions of People in the US Are in Danger of Getting Too Hot

July 28, 2025: A protracted and deadly Extreme heat warning is affecting a lot of the U.S. Millions of people from the Southeast to the Midwest are seeing “feels-like” temperatures in the 90s and 100s. This dangerous heat that affects so many people is projected to last through most of next week.

St. Louis, Missouri, has already been dealing with excessive weather all week, and the heat index is expected to reach up to 114 degrees Fahrenheit over the weekend. Parts of South Carolina and North Carolina, such as Myrtle Beach, Wilmington, and Raleigh, are also under a severe heat warning. Over the weekend, “feels-like” temperatures are anticipated to reach between 113 and 115 degrees Fahrenheit.

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Many places are under heat advisories because “feels-like” temperatures are expected to reach the 90s and even the 100s. This spans a wide area from Florida to Virginia (Tampa, Savannah, Richmond), from Texas to West Virginia (Dallas, Oklahoma City, Memphis, Cincinnati, Charleston), and sections of the Upper Midwest (Pierre, Bismarck, Duluth).

The Northeast had a notably cooler and drier Saturday into Sunday because of a cold front that passed through. However, the heat and humidity are building up significantly over the Midwest and Southeast, creating a protracted and dangerous spell.

Extreme heat watches have been issued for towns including Omaha, Sioux Falls, Des Moines, Minneapolis, and Duluth, as well as other regions of Nebraska, Iowa, South Dakota, and Minnesota. On Sunday, “feels-like” temperatures will likely soar well into the 90s and even into the 100s. Next week, millions of Americans from St. Louis to Tampa are expected to see “feels-like” temperatures that stay in the 100s and go beyond 110 degrees Fahrenheit for days on end.

From Sunday to Thursday, a level 4 of 4 “Extreme Heat Risk” is in effect for a lot of the Southeast. This is the highest alert level, which means “Rare and/or long-duration extreme heat with no overnight relief affecting anyone without cooling/hydration as well as health systems, industries and infrastructure.”

Concerns About Fire in Dry Weather
Fire weather alerts are in effect for sections of Utah, Colorado, and Wyoming on Saturday because of dry and windy conditions. This weather pattern will make any flames that are already going on worse. For example, the Deer Creek Fire has scorched more than 17,000 acres and is 77% contained as of Saturday morning. It also makes it very likely that any new fires will spread quickly.