KANSAS CITY, Mo. (CNN) — Residents in central and eastern United States will sweat through another blistering day Monday as power outages from weekend storms continue to plague much of the country.
The intense early-summer weather has baked areas from Missouri to New York to Georgia with record-breaking heat and unleashed fierce storms that knocked out power to millions over the weekend. At least 16 people were killed from the series of storms.
While the pinnacle of heat has passed for many, so-called cooler temperatures Monday will still reach as high as 99 degrees Fahrenheit (37 C) for Louisville, Kentucky, and 96 degrees in Columbus, Ohio.
But triple-digit heat is still expected to smother areas from Missouri to South Carolina on Monday.
Federal agencies in the Washington area will remain open Monday, but non-emergency employees have the option to work remotely.
Cities and towns in the Southeast and Midwest have already endured temperatures of more than 100 degrees for days. For many, the misery is compounded by a lack of electricity.
Hundreds of thousands of people from Indiana through Maryland were still dealing without power late Sunday after a massive storm late Friday and Saturday that was fueled, in part, by the extreme heat.
While down from a peak of about 4 million, the number of storm-related outages was still dangerously high given that people were trying to get by without working air conditioning or ice.
The APE Ohio utility company had about 425,000 customers out of power as of 10 p.m. Sunday. Widespread outages were reported further east as well, including over 310,000 Dominion customers in Virginia and more than 490,000 outages for BGE and Pepco customers in Maryland.
“It’s the combination of heat and power outages that are hitting people,” said Tamara McBride of the Ohio Emergency Management Agency. She predicted some may not get electricity until “well into the week.”
Another bout of storms Sunday afternoon brought some relief to the heat, but also danger as well.
The National Weather Service reported that a man in Calico, North Carolina, was killed when a shed fell on him as he was trying to store his golf cart.
A few minutes later, in nearby Gilead, storm-related winds knocked over a tree that fell on a couple in a golf cart, killing them both.
More deaths tied to the weekend storms were reported from Ohio to New Jersey.
Virginia had the highest death toll, at seven, with the state Department of Emergency Management noting the deaths were spread across four different counties.
And in New Jersey, 2-year-old and 7-year-old cousins died after a fallen tree crashed on the tent they were huddling inside in Parvin State Park, state Department of Environmental Protection spokesman Larry Ragonese said.
The stubborn, oppressive heat wave can cause serious health problems because the effects of heat can be cumulative — the longer you experience it, the more likely you are to experience conditions such as heat stroke and dehydration.
“Current indications are that this heat wave may continue for much of the upcoming work week,” the National Weather Service’s St. Louis bureau warned. “Do not wait until the heat wave has lasted for several days, take action today to protect your health and continue to do so.”
Between June 24 and Saturday, 1,928 record-high temperatures were broken or tied nationwide. That number doesn’t include new ones expected from Sunday that still aren’t in the National Climatic Data Center’s official count.
But some tried to make the best of the roasting temperatures outside.
Holly Coons of Nashville, Tennessee, decided to bake cookies on the dashboard of her car when it was 107 degrees outside.
“I actually burned my hand when I grabbed the cookie sheet out of the car,” she said. But the cookies were done.
CNN’s Alexandra Steele, Jareen Imam, Josh Levs, Greg Botelho and Maggie Schneider contributed to this report.