High temperatures are expected across the Tennessee Valley and the southern Appalachian Mountains as a heat wave expands across much of the country, according to the National Weather Service in Morristown. With humidity, heat indices in the region could exceed 100 degrees Fahrenheit.

The heat wave is forecast for the rest of July and into early August.

“Above-normal temperatures are likely over the Tennessee Valley and southern Appalachians,” the NWS said. “Temperatures will climb into the middle and upper 90s across parts of the Tennessee Valley for the end of July and early August along with muggy conditions.”

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