Another heat wave is rolling through, and Tuesday's expected high of 89 might be Central Kentucky's lowest daytime high for the rest of the week.
Wednesday's high is forecast for 90; Thursday and Friday could bring highs of 94 degrees. Saturday and Sunday also should see highs in the lower and mid-90s.
Heat indices throughout the week will range from 100 to 105, according to a special weather statement issued by the National Weather Service.
There is a 40 percent chance of thunderstorms Tuesday and a smaller chance of scattered showers and thunderstorms Tuesday night and Wednesday afternoon.
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Don Kirkpatrick, meteorologist with the National Weather Service in Louisville, said the showers could help cool things off a little.
"It makes a difference when you have clouds and isolated storms in the area," he said. Monday evening, for instance, the temperature in Lexington, where it had just rained, was in the mid-80s; Louisville, which hadn't gotten any rain, had a temperature of 92, Kirkpatrick said.
He said Louisville and Bowling Green, and points farther west, would be under a heat advisory Tuesday, but no advisory had been issued for Central Kentucky because it will be "a little bit cooler" here.
Kentucky is certainly not sweltering alone.
"There's just a ridge of high pressure that's deep, that covers a broad area of the middle of the country," Kirkpatrick said. "We are on the eastern edge of it."
From Texas to Minnesota and the Dakotas, misery has been widespread. Stifling temperatures continued to build Monday across the central United States, with 17 states issuing heat watches, warnings or advisories.
The heat index, which combines temperature and humidity, easily surpassed 100 degrees in many places: 126 in Newton, Iowa; 120 in Mitchell, S.D.; and 119 in Madison, Minn. The heat was nearly certain to persist this week, and forecasters said it would soon spread to the East Coast.
Kirkpatrick said the temperatures in Central Kentucky are not out of the ordinary, because the last two weeks of July are typically the hottest of the year.
The weather service said people should plan to do strenuous outdoor activities in the early mornings or late evenings, drink plenty of water and take frequent rest breaks in the shade or indoors.